gpmc Asynchronous formula issue

Robinson lei

What is the meaning of "TimeParaGranularity" in the formula.

0 Biser Gatchev-XID over 8 years ago

The TIMEPARAGRANULARITY parameter is configured in register GPMC_CONFIG1_x. It is effectively a 1:2 divisor of the GPMC_FCLK frequency.

0 Robinson lei over 8 years ago in reply to Biser Gatchev-XID

hello Biser Gatchev-XID

if i use ： For single read: A = (CSRdOffTime – CSOnTime) × (TimeParaGranularity + 1) × GPMC_FCLK

GPMC_FCLK frequency = 100Mhz

when the TIMEPARAGRANULARITY = 0h

For single read: A = (CSRdOffTime – CSOnTime) × (1 + 1) × 10ns. Is it correct?

0 Biser Gatchev-XID over 8 years ago in reply to Robinson lei

when TIMEPARAGRANULARITY = 0h

It should be: For single read: A = (CSRdOffTime – CSOnTime) × (0 + 1) × 10ns.

0 Robinson lei over 8 years ago in reply to Biser Gatchev-XID

ok, Thank you very much .

Processors forum