Chapter 3 ROM Monitor Commands
When the Remote Annex 6300 begins to boot, it displays the load server host’s Internet address. If the unit does not boot successfully after several attempts, it displays a boot attempt failed message; if the unit has opened the boot file and an error occurs during the boot process, it displays a boot error report on the console and returns to the ROM Monitor. The boot error report can help determine the cause of the boot failure (see Boot Error Report on page
During a boot, the console may display four possible status symbols: “.” indicates received data blocks, “?” indicates unanswered requests, “*” indicates transmission errors, and “! ~XXXX~” is a status word from the Ethernet chip on the Annex indicating a gross problem with the Ethernet connection (if this symbol appears in your boot command display, contact technical support).
The status word “! ~XXXX~”, where XXXX are four hexadecimal digits, decodes as follows:
8000 = Command complete
4000 = Chip is busy
2000 = Command completed without error
1000 = Command aborted issuance of an ABORT command
800 = Late collision detected
400 = Carrier lost
200 = CTS lost
100 = DMA underrun
80 = Transmission deferred because link was busy
40 = Collision detected during interframe spacing (SQE/Heartbeat detected)
20 = Excessive collisions
10 = Reserved
The lowest nibble (bits 3 to 0) are a count of collisions during this transmission. For example:
~8802~ = Complete, Late collision, 2 collisions
~8841~ = Complete, Late Collision, SQE detected, 1 collision
Remote Annex 6300 Hardware Installation Guide |
