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AR# 52012

Zynq-7000 AP SoC, Boot Sys - INIT_B pin does not indicate boot error status

Description

A design enhancementadds functionality in the INIT_B configuration pin.

Solution

The enhancement is for the BootROM to use the INIT_B pin to indicate when a boot error has been detected. The BootROM controls the logic level on the INIT_B pin indirectly by writing to the devcfg.CTRL[PCFG_PROG_B] bit.

In 7z020/45 CES devices , the INIT_B pin does not indicate a PS boot failure.

Impact:
Trivial.
Work-around:
None.
Configurations Affected:
All.
Device Revision(s) Affected: Refer to Zynq-7000 Device Advisory Master Answer Record
AR# 52012
Date Created 10/25/2012
Last Updated 01/31/2013
Status Active
Type Design Advisory