Why Don’t the Upper CSI Socket Address Bits Toggle on the A7?

Why Don’t the Upper CSI Socket Address Bits
Toggle on the A7?

A bug was found in FastChip 2.2.0 where the upper address bits of the CSI bus socket are stuck High or Low in some cases. This bug only affects the CSI bus socket address bits and not the actual address value on the CSI bus.

This bug only affects socket address lines A[31:8].

The designs affected are those using the following CSI bus socket primitives.

A31_28
A27_24
A23_20
A19_16
A15_12
A11_8

A work-around is posted for download from the Triscend FTP site.

ftp://ftp.triscend.com/FC220Aug27/FC220Aug27.exe
[39.4 MB]

FastChip Version: 2.2.0

This solution may or may not apply to other versions of the FastChip development system.