[c-nsp] Release notes for ISR ROMMON

[Church, Charles]

Anyone know where to find the release notes for the various ROMMON versions for the 2800 and 3800 routers?  Noticed 'DRAM access optimization' as a benefit of the latest 2800 ROMMON, and I recently worked on a problem with a 3845 giving console messages like this:
 
System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2006 by cisco Systems, Inc.
 
Rommon primary and backup variables are invalid...
Warning: monitor nvram area is corrupt ... using default values
amd_flash_cmd: timeout on erase sector command
environment checksum failed
amd_flash_cmd: timeout on erase sector command
environment write to NVRAM failed
amd_flash_cmd: timeout on erase sector command
*** Emulating mis-aligned store at 0x9fc1d9af
    PC = 0x9fc1da34 ... failed, opcode = 0x23
ROM Monitor Can Not Recover From Exception
A Board ÿ
System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2006 by cisco Systems, Inc.
 
Storing backup rommon variables...
amd_flash_cmd: timeout on erase sector command
amd_flash_cmd: timeout on erase sector command
environment checksum failed
Total memory size = 512 MB - DIMM0 = 512 MB, DIMM1 = 0 MB
c3845 platform with 524288 Kbytes of main memory
Main memory is configured to 72/0(dimm 0/1) bit mode with ECC enabled

Readonly ROMMON initialized
amd_flash_cmd: timeout on erase sector command
*** Emulating mis-aligned store at 0x9fc1d9af
    PC = 0x9fc1da34 ... failed, opcode = 0x23

I've got a feeling it's really bad hardware, but usually want to exhaust all the possible bugs before calling TAC.  Since it specifically mentions ROMMON variables in the output, figured it was at least related.  The DRAM access optimization thing just sounds interesting.  Searched the web site for a good 20 minutes, no luck.

Thanks,
 
Chuck