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TUSB7320 - PCI Register Access

Kawai
Guru 19785 points
Other Parts Discussed in Thread: TUSB7320

Hi Team,

I understand that there are 2 way to access PCI Register, EEPROM or BIOS. But, I could not understand the detail procedure how to access using the above each way.

Do you have an application note or any material which describes in detail ?
Please tell us the procedure how to program PCI Register.

Best Regards,
Kawai

  • 0
    TI__Mastermind 36085 points

    Hello Kawai,

    The easiest way to configure the PCI registers is by means of the EEPROM. This method consists on write the desired configurations in an EEPROM (Attached is an example of the configuration implemented on the EVM), the definition of each byte is given in the table 7-1 of datasheet, page 97. You only have to program the EEPROM with the desired configuration and the TUSB7320 will load the configuration from the EEPROM on each power-on/RESET cycle .

    The second way is by directly accessing to the PCI registers of the TUSB7320, this procedure must be done each time the system turns on and the implementation depends on the OS.

    Fullscreen 5126.TUSB73x0_EEPROM.txt Download 
    'WinROM 3 EEPROM Data File
'DEVICE ID: 8241104C	SILICON REV: 02
'Created 12/19/2013 4:15:28 PM
000	00	00000000
001	19	00011001
002	61	01100001
003	14	00010100
004	70	01110000
005	75	01110101
006	AB	10101011
007	0D	00001101
008	1B	00011011
009	3F	00111111
00A	00	00000000
00B	00	00000000
00C	00	00000000
00D	00	00000000
00E	00	00000000
00F	00	00000000
010	00	00000000
011	00	00000000
012	00	00000000
013	00	00000000
014	00	00000000
015	00	00000000
016	00	00000000
017	00	00000000
018	00	00000000
019	00	00000000
01A	20	00100000
01B	80	10000000
01C	FF	11111111
01D	FF	11111111
01E	FF	11111111
01F	FF	11111111
020	FF	11111111
021	FF	11111111
022	FF	11111111
023	FF	11111111
024	FF	11111111
025	FF	11111111
026	FF	11111111
027	FF	11111111
028	FF	11111111
029	FF	11111111
02A	FF	11111111
02B	FF	11111111
02C	FF	11111111
02D	FF	11111111
02E	FF	11111111
02F	FF	11111111
030	FF	11111111
031	FF	11111111
032	FF	11111111
033	FF	11111111
034	FF	11111111
035	FF	11111111
036	FF	11111111
037	FF	11111111
038	FF	11111111
039	FF	11111111
03A	FF	11111111
03B	FF	11111111
03C	FF	11111111
03D	FF	11111111
03E	FF	11111111
03F	FF	11111111
040	FF	11111111
041	FF	11111111
042	FF	11111111
043	FF	11111111
044	FF	11111111
045	FF	11111111
046	FF	11111111
047	FF	11111111
048	FF	11111111
049	FF	11111111
04A	FF	11111111
04B	FF	11111111
04C	FF	11111111
04D	FF	11111111
04E	FF	11111111
04F	FF	11111111
050	FF	11111111
051	FF	11111111
052	FF	11111111
053	FF	11111111
054	FF	11111111
055	FF	11111111
056	FF	11111111
057	FF	11111111
058	FF	11111111
059	FF	11111111
05A	FF	11111111
05B	FF	11111111
05C	FF	11111111
05D	FF	11111111
05E	FF	11111111
05F	FF	11111111
060	FF	11111111
061	FF	11111111
062	FF	11111111
063	FF	11111111
064	FF	11111111
065	FF	11111111
066	FF	11111111
067	FF	11111111
068	FF	11111111
069	FF	11111111
06A	FF	11111111
06B	FF	11111111
06C	FF	11111111
06D	FF	11111111
06E	FF	11111111
06F	FF	11111111
070	FF	11111111
071	FF	11111111
072	FF	11111111
073	FF	11111111
074	FF	11111111
075	FF	11111111
076	FF	11111111
077	FF	11111111
078	FF	11111111
079	FF	11111111
07A	FF	11111111
07B	FF	11111111
07C	FF	11111111
07D	FF	11111111
07E	FF	11111111
07F	FF	11111111
080	00	00000000
081	19	00011001
082	61	01100001
083	14	00010100
084	70	01110000
085	75	01110101
086	AB	10101011
087	0D	00001101
088	1B	00011011
089	3F	00111111
08A	00	00000000
08B	00	00000000
08C	00	00000000
08D	00	00000000
08E	00	00000000
08F	00	00000000
090	00	00000000
091	00	00000000
092	00	00000000
093	00	00000000
094	00	00000000
095	00	00000000
096	00	00000000
097	00	00000000
098	00	00000000
099	00	00000000
09A	20	00100000
09B	80	10000000
09C	FF	11111111
09D	FF	11111111
09E	FF	11111111
09F	FF	11111111
0A0	FF	11111111
0A1	FF	11111111
0A2	FF	11111111
0A3	FF	11111111
0A4	FF	11111111
0A5	FF	11111111
0A6	FF	11111111
0A7	FF	11111111
0A8	FF	11111111
0A9	FF	11111111
0AA	FF	11111111
0AB	FF	11111111
0AC	FF	11111111
0AD	FF	11111111
0AE	FF	11111111
0AF	FF	11111111
0B0	FF	11111111
0B1	FF	11111111
0B2	FF	11111111
0B3	FF	11111111
0B4	FF	11111111
0B5	FF	11111111
0B6	FF	11111111
0B7	FF	11111111
0B8	FF	11111111
0B9	FF	11111111
0BA	FF	11111111
0BB	FF	11111111
0BC	FF	11111111
0BD	FF	11111111
0BE	FF	11111111
0BF	FF	11111111
0C0	FF	11111111
0C1	FF	11111111
0C2	FF	11111111
0C3	FF	11111111
0C4	FF	11111111
0C5	FF	11111111
0C6	FF	11111111
0C7	FF	11111111
0C8	FF	11111111
0C9	FF	11111111
0CA	FF	11111111
0CB	FF	11111111
0CC	FF	11111111
0CD	FF	11111111
0CE	FF	11111111
0CF	FF	11111111
0D0	FF	11111111
0D1	FF	11111111
0D2	FF	11111111
0D3	FF	11111111
0D4	FF	11111111
0D5	FF	11111111
0D6	FF	11111111
0D7	FF	11111111
0D8	FF	11111111
0D9	FF	11111111
0DA	FF	11111111
0DB	FF	11111111
0DC	FF	11111111
0DD	FF	11111111
0DE	FF	11111111
0DF	FF	11111111
0E0	FF	11111111
0E1	FF	11111111
0E2	FF	11111111
0E3	FF	11111111
0E4	FF	11111111
0E5	FF	11111111
0E6	FF	11111111
0E7	FF	11111111
0E8	FF	11111111
0E9	FF	11111111
0EA	FF	11111111
0EB	FF	11111111
0EC	FF	11111111
0ED	FF	11111111
0EE	FF	11111111
0EF	FF	11111111
0F0	FF	11111111
0F1	FF	11111111
0F2	FF	11111111
0F3	FF	11111111
0F4	FF	11111111
0F5	FF	11111111
0F6	FF	11111111
0F7	FF	11111111
0F8	FF	11111111
0F9	FF	11111111
0FA	FF	11111111
0FB	FF	11111111
0FC	FF	11111111
0FD	FF	11111111
0FE	FF	11111111
0FF	FF	11111111

'DATA FILE FORMAT: <HEX ADDRESS><TAB><HEX DATA>. EVERYTHING AFTER <DATA> IS IGNORED.
'USE <'> FOR IN-LINE COMMENTING.
'DATA FILE PARSING STOPS AT FIRST BLANK LINE.

    Best regards,

    Diego. 

  • 0 in reply to Diego Cortes
    Guru 19785 points
    Hi Diego-san,

    Sorry that I had not verified your answer. Could you please allow me to ask you one more thing ?

    Is it possible to program the registers through I2C as TUSB7320 in I2C slave mode ? I believe I2C pins are only for reading from EEPROM (I2C Master mode).

    Best Regards,
    Kawai
  • 0 in reply to Kawai
    TI__Mastermind 36085 points

    Hello Kawai-san,

        Unfortunately all the configurations are made via PCIe, the I2C bus is master only and it is used to load the configuration from the EEPROM after power -on only.

    Regards,

    Diego.

  • 0 in reply to Diego Cortes
    Guru 19785 points
    Hello Diego-san,

    I understand. Thank you for the information.

    Best Regards,
    Kawai