Motorola CPCI-6020 用户手册

You can use the factory-installed debug monitor, PPCBug, to modify certain parameters 
contained in the board's Non-Volatile RAM (NVRAM), also known as Battery Backed-up RAM 
(BBRAM).

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The Board Information Block in NVRAM contains various elements concerning operating 
parameters of the hardware. Use the PPCBug command CNFG to change those 
parameters.

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Use the PPCBug command ENV to change configured PPCBug parameters in NVRAM.

The CNFG and ENV commands are both described in the PPCBug Firmware Package User's 
Manual. Refer to that manual for general information about their use and capabilities.

The following paragraphs present additional information about CNFG and ENV that is specific 
to the PPCBug debugger, along with the parameters that can be configured with the ENV 
command.

Use this command to display and configure the Board Information Block, which is stored in the 
NVRAM. The Board Information Block lists details of your specific board, such as the Board 
Serial Number, the Board Identifier, the Bus Clock Speed and other operational or ID 
characteristics. The example below displays a typical Board Information Block: 

Board (PWA) Serial Number = “2717994"

Board Identifier

= “CPCI-6020-60X-0XX"

Artwork (PWA) Identifier

= “01-W3938F02B"

MPU Clock Speed

= “500"

Bus Clock Speed

= “067"

Ethernet Address

= $0001AF0A1B2C

Local SCSI Identifier*

= “07”

System Serial Number

= “1234567"

System Identifier

= “Motorola CPCI-6020603-001a”

License Identifier

= “12345678 “