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MSP430FR5964: Abnormal read operation of FRAM under low temperature environment

Sh.Sasaki
Guru 13625 points
Part Number: MSP430FR5964
Other Parts Discussed in Thread: MSP-GANG, MSP-FET

Hi experts,

There is an error in the read operation of FRAM in a low temperature environment.
Is there any errata regarding FRAM Read operation under low temperature environment?

We tested in the following way.

1. Put my customer's MSP430FR5964 board in a constant temperature bath to 0 ℃.
2. Erase FRAM in this state
3. Read the FRAM data after Erase

Then, 0xFFFE was read as follows.

Read_error.txt 
=== Info Memory        ( 0x1800 to  0x197F) ===

0x00001800:       ------- b l a n k ----(all 0xFF)------- 


=== Info-A Memory      ( 0x1980 to  0x19FF) ===

0x00001980:       ------- b l a n k ----(all 0xFF)------- 


=== Main Memory Page-0 ( 0x4000 to  0xFFFF) ===

0x00004000:       ------- b l a n k ----(all 0xFF)------- 


0x0000A500:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A510:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A520:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A530:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A540:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A550:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A560:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A570:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A580:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A590:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A5A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A5B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A5C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A5D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A5E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A5F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A600:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A610:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A620:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A630:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A640:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A650:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A660:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A670:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A680:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A690:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A6A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A6B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A6C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A6D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A6E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A6F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A700:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A710:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A720:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A730:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A740:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A750:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A760:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A770:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A780:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A790:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A7A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A7B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A7C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A7D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A7E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A7F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A800:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A810:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A820:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A830:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A840:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A850:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A860:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A870:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A880:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A890:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A8A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A8B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A8C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A8D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A8E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A8F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A900:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A910:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A920:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A930:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A940:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A950:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A960:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A970:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A980:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A990:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A9A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A9B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A9C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A9D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A9E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000A9F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AA00:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AA10:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AA20:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AA30:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AA40:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AA50:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AA60:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AA70:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AA80:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AA90:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AAA0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AAB0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AAC0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AAD0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AAE0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AAF0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AB00:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AB10:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AB20:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AB30:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AB40:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AB50:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AB60:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AB70:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AB80:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AB90:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ABA0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ABB0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ABC0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ABD0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ABE0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ABF0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AC00:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AC10:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AC20:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AC30:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AC40:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AC50:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AC60:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AC70:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AC80:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AC90:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ACA0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ACB0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ACC0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ACD0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ACE0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ACF0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AD00:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AD10:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AD20:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AD30:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AD40:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AD50:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AD60:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AD70:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AD80:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AD90:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ADA0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ADB0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ADC0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ADD0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ADE0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000ADF0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AE00:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AE10:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AE20:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AE30:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AE40:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AE50:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AE60:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AE70:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AE80:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AE90:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AEA0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AEB0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AEC0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AED0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AEE0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AEF0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AF00:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AF10:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AF20:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AF30:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AF40:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AF50:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AF60:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AF70:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AF80:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AF90:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AFA0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AFB0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AFC0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AFD0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AFE0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000AFF0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B000:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B010:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B020:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B030:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B040:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B050:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B060:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B070:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B080:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B090:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B0A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B0B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B0C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B0D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B0E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B0F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B100:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B110:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B120:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B130:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B140:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B150:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B160:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B170:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B180:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B190:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B1A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B1B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B1C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B1D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B1E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B1F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B200:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B210:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B220:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B230:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B240:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B250:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B260:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B270:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B280:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B290:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B2A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B2B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B2C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B2D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B2E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B2F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B300:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B310:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B320:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B330:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B340:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B350:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B360:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B370:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B380:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B390:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B3A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B3B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B3C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B3D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B3E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B3F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B400:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B410:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B420:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B430:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B440:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B450:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B460:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B470:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B480:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B490:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B4A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B4B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B4C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B4D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B4E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B4F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B500:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B510:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B520:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B530:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B540:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B550:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B560:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B570:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B580:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B590:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B5A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B5B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B5C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B5D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B5E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B5F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B600:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B610:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B620:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B630:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B640:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B650:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B660:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B670:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B680:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B690:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B6A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B6B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B6C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B6D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B6E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B6F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B700:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B710:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B720:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B730:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B740:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B750:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B760:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B770:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B780:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B790:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B7A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B7B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B7C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B7D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B7E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B7F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B800:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B810:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B820:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B830:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B840:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B850:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B860:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B870:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B880:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B890:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B8A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B8B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B8C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B8D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B8E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B8F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B900:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B910:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B920:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B930:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B940:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B950:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B960:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B970:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B980:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B990:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B9A0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B9B0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B9C0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B9D0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B9E0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000B9F0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BA00:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BA10:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BA20:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BA30:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BA40:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BA50:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BA60:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BA70:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BA80:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BA90:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BAA0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BAB0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BAC0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BAD0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BAE0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BAF0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BB00:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BB10:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BB20:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BB30:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BB40:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BB50:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BB60:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BB70:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BB80:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BB90:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BBA0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BBB0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BBC0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BBD0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BBE0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BBF0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BC00:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BC10:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BC20:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BC30:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BC40:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BC50:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BC60:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BC70:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BC80:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BC90:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BCA0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BCB0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BCC0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BCD0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BCE0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BCF0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BD00:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BD10:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BD20:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BD30:  00 FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BD40:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BD50:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BD60:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BD70:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BD80:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BD90:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BDA0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BDB0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BDC0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BDD0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BDE0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BDF0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BE00:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BE10:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BE20:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BE30:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BE40:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BE50:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BE60:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BE70:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BE80:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BE90:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BEA0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BEB0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BEC0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BED0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BEE0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BEF0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BF00:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BF10:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BF20:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BF30:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BF40:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BF50:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BF60:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BF70:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BF80:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BF90:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BFA0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BFB0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BFC0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BFD0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BFE0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000BFF0:  FF FE FF FE FF FE FF FE   FF FE FF FE FF FE FF FE | ................
0x0000C000:       ------- b l a n k ----(all 0xFF)------- 


=== Main Memory Page-1 (0x10000 to 0x1FFFF) ===

0x00010000:       ------- b l a n k ----(all 0xFF)------- 


=== Main Memory Page-2 (0x20000 to 0x2FFFF) ===

0x00020000:       ------- b l a n k ----(all 0xFF)------- 


=== Main Memory Page-3 (0x30000 to 0x3FFFF) ===

0x00030000:       ------- b l a n k ----(all 0xFF)------- 


=== Main Memory Page-4 (0x40000 to 0x43FFF) ===

0x00040000:       ------- b l a n k ----(all 0xFF)-------

This can be normally read (all 0xFF) as follows when the same test is performed in the normal temperature environment(20℃).

Read_correct.txt 
=== Info Memory        ( 0x1800 to  0x197F) ===

0x00001800:       ------- b l a n k ----(all 0xFF)------- 


=== Info-A Memory      ( 0x1980 to  0x19FF) ===

0x00001980:       ------- b l a n k ----(all 0xFF)------- 


=== Main Memory Page-0 ( 0x4000 to  0xFFFF) ===

0x00004000:       ------- b l a n k ----(all 0xFF)------- 


=== Main Memory Page-1 (0x10000 to 0x1FFFF) ===

0x00010000:       ------- b l a n k ----(all 0xFF)------- 


=== Main Memory Page-2 (0x20000 to 0x2FFFF) ===

0x00020000:       ------- b l a n k ----(all 0xFF)------- 


=== Main Memory Page-3 (0x30000 to 0x3FFFF) ===

0x00030000:       ------- b l a n k ----(all 0xFF)------- 


=== Main Memory Page-4 (0x40000 to 0x43FFF) ===

0x00040000:       ------- b l a n k ----(all 0xFF)-------

Why does this issue occur?

A customer has produced 1200 MSP430FR5964 boards and only one has this issue.

Best regards,

Sasaki

  • 0
    TI__Expert 7365 points

    Hi Sasaki-San,

    You can check the device reliability statistics at https://www.ti.com/quality/docs/estimator.tsp. Can you tell the specific device type used here? The different package options available are MSP430FR5964IPMR, MSP430FR5964IPNR, MSP430FR5964IRGZR & MSP430FR5964IZVWR.

    Srinivas

  • 0 in reply to Srinivas Lingam
    Guru 13625 points

    HI Srinivas-san,

    Thank your for your reply.

    Srinivas Lingam said:
    Can you tell the specific device type used here?

    My customer's device is MSP430FR5964IRGZR.

    Looking forward to your reply.

    Best regards,

    Sasaki

  • 0
    Intellectual 450 points

    FYI, this document describes the FRAM and discusses temperature issues:

    Application Report SLAA526A–March 2012–Revised May 2014 MSP430™ FRAM Quality and Reliability  (SLAA526A).

  • 0 in reply to Bryce Nesbitt
    Guru 13625 points

    Hi Bryce-san,

    Thank you for your reply.

    I checked SLAA526A. However, the content of the document had nothing to do with this issue.

    Do you have any ideas on this issue?

    Best regards,

    Sasaki

  • 0 in reply to Sh.Sasaki
    Intellectual 450 points

    I have no ideas.  The document given describes how the FRAM works, which may be a clue.  Temperature dependencies are common in electronics, though usually get better with low temperature.  
    How about this: try altering in firmware the FRAM write timing, and seeing if that makes a difference.  Per your writeup it could be either the ERASE or the read that's the problem.  More likely the erase.

    As well perform your erase at room temperature, and then the read a 0C.

    Given enough evidence you should be able to then escalate to a TI application engineer, who may eventually escalate and want to get your failing sample.  Clearly 0C is not a very low temperature, and well within part specs.

  • 0 in reply to Bryce Nesbitt
    Guru 13625 points

    Hi Bryce-san,

    Thank you for your support.

    Due to the declaration of emergency, I cannot immediately do another test.

    What I currently know is:

    • The problem is only FRAM Read.
    • After erasing the FRAM at room temperature and then reading the FRAM with the temperature set to 0℃, no problem occurs.
    • After erasing the FRAM with the temperature set to 0 ° C and then reading the FRAM, this problem occurs.
    • Erase is performed by MSP-GANG, so there is no influence of the program.

    Is there any other evidence needed for escalation?

    Best regards,
    Sasaki

  • 0 in reply to Sh.Sasaki
    TI__Expert 7365 points

    Hi Sasaki-san,

    What is the Revision # of the device?

    Srinivas

  • 0 in reply to Srinivas Lingam
    Guru 13625 points

    Hi Srinivas-san,

    The Revision # of the device is "C".

    Best regards,

    Sasaki

  • 0 in reply to Sh.Sasaki
    Guru 18835 points

    Erase really isn't a thing with FRAM so I am not sure if there is really a problem here. Does the programmer write 0xff to all locations or does it use EraseFRAMViaBootCode_430Xv2? (see slau320) If the later, what is this boot code?

    Every read of FRAM also includes a FRAM write since read is destructive. If this were a temperature problem on write then there would be failures all over the place when devices were operated at low temperatures. So I suspect that this is some weird interaction between programmer and part.

  • 0 in reply to David Schultz
    Guru 13625 points

    Hi David-san,

    David Schultz36 said:
    Erase really isn't a thing with FRAM so I am not sure if there is really a problem here. Does the programmer write 0xff to all locations or does it use EraseFRAMViaBootCode_430Xv2? (see slau320) If the later, what is this boot code?

    I don't know if MSP-GANG uses EraseFRAMViaBootCode_430Xv2.

    I set MSP-GANG to "All Memory" as below, then "Erase" and "Read".

    David Schultz36 said:
    So I suspect that this is some weird interaction between programmer and part.

    What is "some weird interaction"?

    What could be the cause?

    Thanks in advance for your cooperation.

    Best regards,

    Sasaki

  • 0 in reply to David Schultz
    Guru 13625 points

    By the way, this problem happens even without MSP-GANG. I have a problem when I write access to FRAM from MSP-FET or the program of MSP430.

    Best regards,

    Sasaki

  • 0 in reply to Sh.Sasaki
    Guru 18835 points

    By weird I mean something that I can't imagine.

    Remember that because of the write after read behaviour of FRAM, just running a program causes writes to FRAM. If FRAM writes were really failing to write some bits, your programs would fail to run every time. In any case, if you can program the part, I would ignore this error.

  • 0 in reply to David Schultz
    Guru 13625 points

    David-san,

    Thank you for your support.

    I will continue to investigate.

    If you notice anything, please reply to this thread.

    Best regards,

    Sasaki

  • 0 in reply to Sh.Sasaki
    Intellectual 450 points

    Sasaki: if you are seeking a resolution, directly opening a ticket with TI is likely a more productive way to go.

    The first few people you talk to via that method will be low level technicians.  But if you persist you may get somewhere.

    You'll want to provide complete test code, ready to compile, and exact everything.  Make it so that TI can reprelicate

    exactly what you see, and be prepared to send them two samples --- one WITH and one WITHOUT the behavior,.

  • 0 in reply to Bryce Nesbitt
    TI__Genius 14165 points

    Sasaki,

    as you read dump showed this is not a single bit issue but looks more like a systemic issue in the memory area you reported.

    You said it happens also with MSP-FET? Therefore I have some more questions?

    1. Is the GANG SW and the used mspdebug stack version (msp430.dll) updated to the latest one?
    2. Is the failure reproducible (always on the same unit and or do you see more units)?
    3. Is the supply voltage stable during erase (no contact issues or similar things)?
    4. If you performed the ERASE at low temp and read the fail log at low temp, what happens if you increase temp to room temp and read again?
      --> bit fails still present?
    5. Can you also reproduce it by a short ERASE function execution from FRAM or RAM in application like mode at low temp?
      --> so please use a short piece of code to write 0xFF from RAM to the dedicated memory addresses and try at different temperatures.

    I wan to see if this is a tool related behavior or a device specific one. If you can reproduce without GANG or MSP-FET by small bench test program it would help us to judge the behavior.

  • 0 in reply to Dietmar Walther
    Guru 13625 points

    Dietmar-san, Bryce-san,

    Thank you for your reply.

    Dietmar Walther said:
    • Is the GANG SW and the used mspdebug stack version (msp430.dll) updated to the latest one?
    • Is the failure reproducible (always on the same unit and or do you see more units)?
    • Is the supply voltage stable during erase (no contact issues or similar things)?
    • If you performed the ERASE at low temp and read the fail log at low temp, what happens if you increase temp to room temp and read again?
      --> bit fails still present?
    • Can you also reproduce it by a short ERASE function execution from FRAM or RAM in application like mode at low temp?
      --> so please use a short piece of code to write 0xFF from RAM to the dedicated memory addresses and try at different temperatures.

    I will check these contents.

    We will report it as soon as it is confirmed.

    Best regards,

    Sasaki

  • 0 in reply to Dietmar Walther
    Guru 13625 points

    Hi Dietmar-san,

    I did the test again. I will report below.

    1. Is the GANG SW and the used mspdebug stack version (msp430.dll) updated to the latest one?

    --> The results were the same with the latest ones.

    2. Is the failure reproducible (always on the same unit and or do you see more units)?

    --> The failure is reproducible.

    A customer has produced 1200 MSP430FR5964 boards and only one has this issue.

    3. Is the supply voltage stable during erase (no contact issues or similar things)?

    --> The power supply is very stable.

    4. If you performed the ERASE at low temp and read the fail log at low temp, what happens if you increase temp to room temp and read again?
    --> bit fails still present?

    --> Bit fails still present.

    After increase temp to room temperature, reloading the program to the device, this issue does not occur.

    5. Can you also reproduce it by a short ERASE function execution from FRAM or RAM in application like mode at low temp?
    --> so please use a short piece of code to write 0xFF from RAM to the dedicated memory addresses and try at different temperatures.

    --> I use a short piece of code to write 0xFF from RAM to the dedicated memory addresses and try at different temperatures.
    Problems will begin to occur below 10 ℃.
    At 0 ° C, this issue definitely occurs.

    Attach the CCS project used for the test.

    FRAM_TEST_CODE.zip

    All programs are located in RAM.
    When the program is executed, data will be written to the FRAM area (0x4000 ~ 0xFF80 & 0x10000 ~ 0x44000).

    I think this issue is not a tool issue.

    Looking forward to your reply.

    Best regards,

    Sasaki

  • 0 in reply to Sh.Sasaki
    TI__Genius 14165 points

    Sasaki-san,

    thanks a lot for helping to exclude the tool in this case I think we need to get the part returned back for detailed investigation.

    To start the process at TI, there is a return portal to be used to report your concerns: http://www.ti.com/support-quality/additional-information/customer-returns.html

    There all relevant info is needed to be entered and a TI representative will be informed about the return request. Once the information is complete and approved by TI, the requestor will be guided on how to return the device(s).

    Please note, if you buy the devices from a TI authorized distributor (and not direct from TI), the distributor needs to be involved and initiate the return as outlined in the link above.

  • 0 in reply to Dietmar Walther
    Guru 13625 points

    Hi Dietmar-san,

    Thank you very much  for your support.

    We are TI distributor, so we will contact TI Japan.

    Best regards,

    Sasaki

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