76891 - Versal: MIO SelectMAP Interfaces

Release Date
76889 -Versal HDIO/MIO : When powered at 3.3V or 2.5V, a race condition can exist between data and tristate when using a tristate is a Design Advisory for Versal ACAPs which details the MIO and HDIO requirements when tristate control is changing.

This Article discusses the SelectMAP use case.

When a PMC MIO bank is powered at 3.3V or 2.5V and is used with a SelectMAP interface, MIO20 (RDWR_B) might affect data outputs of SelectMAP during SelectMAP read abort.

Additionally, assertion of SRST when using SYSMON I2C/PMBUS can result in MIO14 (data) and MIO21 (busy) getting into the tristate race condition when booting from SelectMap.