AM2632: Does RGMII has

Hi Smith,

Yes both AM263P and AM263x RGMII has support for delay for clock supported in hardware

You can read more about it in Section 6.1.7.5 of the AM263 TRM,  "CPSW_CONTROL.RGMII*_ID_MODE, when set to 1, enables the internal delay mode for the transmit path of the corresponding RGMII port. This provides a phase shift of quarter cycle b/w clock and data

1. The reset value of the MMR is 1 and the delay mode is enabled by default (after POR/warm reset, etc)
2. Mode is controllable through the MMR. it can be enabled or disabled.

Smith Chao said:

Currently I want to replace AM2632 to AM263P2 and add new feature that connect RGMII to other host Nvidia SOC.

Just wanted to understand that you are replacing because of RGMII addition? As it is supported on AM2632 also.

thanks for your reply, this is our customer assignation. 

BTW, what the main different for these chips? Our products are automotive relative

thanks

Smith

Smith Chao said:

BTW, what the main different for these chips? Our products are automotive relative

The major advantage that AM263Px has over AM263x are in terms of 1. Control capabilities (Resolver) 2. Memory Architecture (Optiflash and RL2) 3. Flash architecture (OSPI with XIP support)

https://www.ti.com/lit/an/spradb3/spradb3.pdf

Please refer to this document for detailed guide on the difference between two device, with SW and HW both covered. Let me know if ther are any more queries.

thanks