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Appendix A
Using the ROM Monitor
show_spd
To display the contents of the processor's Serial Presence Detect (SPD) device (an electrically erasable
programmable read-only memory (EEPROM) device), use the show_spd command in ROM monitor
mode.
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
ROM monitor
Command History
Release
11.3 NA
12.1(5)EC
12.2(4)BC1
Usage Guidelines
The show_spd command displays the contents of the processor card's SPD/EEPROM memory device.
This information is typically useful only to Cisco TAC engineers.
Note
The show_spd command displays a large volume of data. Enable the capture buffer on your terminal
program so that you can preserve this data and review it later.
Examples
The following example shows how to display the SPD data (only a portion of the command's display is
shown):
rommon 15 > show_spd
DIMM 0 SPD specifications:
byte 0 - 0x80000000
byte 1 - 0x8000000
byte 2 - 0x4000000
...
byte 125 - 0xff000000
byte 126 - 0x64000000
byte 127 - 0xad000000
DIMM 1 SPD specifications:
OL-1581-07
show_spd
Modification
This command was introduced on Cisco uBR7200 series routers.
Support was added for Cisco uBR7100 series routers.
Support was added for the Cisco uBR10012 router. Changes were also made
to the boot procedure after breaking into ROMMON to ensure that all
hardware and software registers are in a known state before loading the new
image.
Cisco Broadband Cable Command Reference Guide
show_spd
A-39
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