76891 - Versal: MIO SelectMAP Interfaces

Release Date

If using a SelectMAP interface with a PMC bank powered at 3.3V or 2.5V, you can work around the issue by pulsing RDWR_B (full 0-1-0 or 1-0-1 transition) with CS_b = 1 before any Write operation by the SelectMAP master.

If SRST is not used, the RDWR_B can also be tied to GND to avoid MIO20 (RDWR_B) getting into a stuck state. 

Revision History:
  • 09/30/2021: Initial Release
  • 10/21/2021 : Added  RDWR_B =GND usecase details
  • 12/13/2021 : Added Pulse RDWR_B WA and additional details to the RDWR_B =GND use case