The MIO I/O Buffers are not three-stated when the BootROM detects an error that forces the system into the ErrorLockDown state.
Impact:
|
Trivial. There is no functional impact to the user. This feature is documented to announce a change of behavior in future silicon revisions. |
Work-around: |
No work-around needed. |
Configurations Affected: |
All. |
| Device Revision(s) Affected: | Refer to Zynq-7000 Device Advisory Master Answer Record |
The Boot ROM can go into an error lockdown state for a number of reasons, including user error, for example by selecting an incorrect boot mode. If an ErrorLockDown occurs, silicon should pull-up and three-state all MIO pins to reduce the risk of damage to Zynq parts and other devices on the board.
| AR# 47574 | |
|---|---|
| Date | 08/07/2012 |
| Status | Active |
| Type | Design Advisory |
| Devices | |