J1 Ipmb Control (7Bh); Port 80 Bios Post Codes (80H) - Intel NetStructure ZT 5504 Manual

J1 IPMB Control (7Bh)

I/O Address: 7Bh
Default Value: 0x00
Attribute: R/W
Bit Description
7:5 RESERVED
4 J1 IPMB Enable
Connect/disconnect IPMB signals to the ZT 5504's J1 connector.
Read Value:
0 = Disconnect.
1 = BMC IPMB is connected to J1.
Write Value:
0 = Disconnect.
1 = BMC IPMB is connected to J1.
3:0 RESERVED

Port 80 BIOS POST Codes (80h)

I/O Address: 80h
Default Value: 0x00
Size: 8 bits
Attribute: WO
Bit Description
7:0 D7-D0
These bits correspond to eight LEDs (labeled D0 through D7) on the solder side of
the PCB. The Port 80 bits report the BIOS POST (diagnostic) codes. These LEDS
may not be visible if a hot swap shield is installed on the board. D7 corresponds to
the most significant bit.
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C. System Registers
74