Nortel Networks NN44200-700 manual Dbg128.exe, Register Remarks

MPB96 board troubleshooting 25

4Select the board number; that is, the slot in which the board is installed (for example, 4 for a 703t system connected to a Meridian 1 switch).

5Select option 5 (500 ms polling time)

Result: The system launches the nbhaltswmon.exe utility and displays a screen containing all the MPB96 registers. The status of the registers indicates the status of the card. You can interpret the card status by reading the bit significance in the MPB96 Unified document.

The following examples illustrate the interpretation of register status:

	—End—
Register	Remarks
Link in/Link out	If all the parameters are set to 0, then no connection is made in
	the time switch memory.
PLL control	If the value displayed ends with 311 or 226, the board is configured
	as slave; that is, it takes Voice bus clocking from a card configured
	as master. If any other value is displayed, then the board is
	configured incorrectly.
PLL status	The typical value for a working system is 0x40077003. For example,
	if the value starts with 0x402xxxxx, then a target abort operation
	occurred on the PCI bus. The card does not work properly. If the
	values of the last four digits change, check the green LEDs on
	the back of the card. The changing values indicate that the DS30
	connection is not stable or was lost
PCI firmware	This register indicates the version of the board and the type of slot
	in which the board is plugged (5V or 3.3V). For example, a typical
	value is 0x80000a16, which indicates that the board is plugged into
	a 3.3V slot (slot 8). For the 5V slot type, the value is 0; this indicates
	that the card is plugged into the wrong slot. The firmware version
	is a16, which indicates a release 1 board.
DSP TA	These registers have values when a target abort operation occurred
	on a particular DSP. The DSP TA registers contain only zeroes
	when the card operates normally.

Dbg128.exe

ATTENTION

Risk of data loss

If you use the dbg128.exe utility without fully understanding its functions, you can destabilize your system and cause a system crash or data corruption. Use this tool only under the supervision of the Design team.

Nortel CallPilot

Troubleshooting Reference Guide

NN44200-700 01.05 Standard

5.026 June 2007

Copyright © 2007, Nortel Networks