Hi DM8168 champs!!
The "Technical Reference Manual SPRUGX8-1 July 2011 - Tables 7-32 and 7-44 SDRAM Timing 3 Register" show that T_RASMAX must be programmed to Fh. The spread sheet "C6A8168 DDR calculate sheet", gives the value 8 instead. What is the reason to program Fh for that parameter? Also, "Table 7-33 DDR PHY Control Register" shows that RL is programmed to Max RL (CAS latency + 7 -1 = 17). Could this cause a timing problem if this field is programmed to a lower value (CAS +1 -1 = 11 for example)?
Thanks!
Anjli
Anjli,
Please refer to the updated DDR Registers spreadsheet on the DDR Init wiki page; it has Fh for that parameter as well.
http://processors.wiki.ti.com/index.php/DM816x_C6A816x_AM389x_DDR3_Init
Regards,Marc
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