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TCI6638K2K: Meaning of register value to optimize PCIe Read/Write Timing.

Sung-IL
Mastermind 31440 points

Part Number: TCI6638K2K

Dear Champs,

My customer is using TCI6638K2K and want to know the exact meaning of below register values  and if these values can help to optimize PCIe Read/Writing Timing.

1. Could you please provide a guide which register can help to optimize PCIe Read/Write Timing?

2. My customer is tuning below values of PL_ACKTIMER register. Could you please let me know the exact meaning of these values?

   a) Does 'RND_TRP_LMT' value reflect waiting time of ACK / NAK?

   b) Is RND_TRP_LMT a period to try again to access register when there is no ACK/NAK?

   c) Does RPLY_LIMT value means expired time when there was no ACK/NAK even with several re-trying?

   d) How  the period of PL_ACKTIMER's count clock can be calculated to check margin?

Thanks and Best Regards,

SI.