CP6000
Configuration
ID 27942, Rev. 05
© 2005 Kontron Modular Computers GmbH
Page 4 - 13
2794
2.05.UG.VC.051020/17275
8
P R E L I M I N A R Y
4.5
Special Registers Description
The following registers are special registers which the CP6000 uses to watch the onboard
hardware special features and the CompactPCI control signals.
Normally, only the system BIOS uses these registers, but they are documented here for
application use as required.
4.5.1
IPMI Control
The IPMI registers are only available if the board is ordered with the IPMI function.
4.5.1.1
IPMI Configuration
The IPMI configuration register holds a series of bits defining the COM port routing of the BMC
controller and the Super I/O. The COM2 port can be used for firmware update or debugging.
Note ...
Take care when modifying the contents of these registers as the system BIOS
may be relying on the state of the bits under its control.
Table 4-16: IPMI Configuration Register
REGISTER NAME
IPMI Configuration Register
ACCESS
ADDRESS
0x19C
R
W
BIT POSITION
MSB
7
6
5
4
3
2
1
0
LSB
CONTENT
Res.
Res.
Res.
Res.
BMC_EXT BMC_COM BMC_RST BMC_PRG
DEFAULT
0
0
0
0
0
0
0
0
BIT
NAME
VAL
DESCRIPTION
0
BMC_PRG
0
Set normal operating mode
1
Set BMC controller in program mode
1
BMC_RST
0
BMC controller is running
1
Reset BMC controller
2
BMC_COM
0
Super I/O COM2 port is connected to COM2 connector
1
Super I/O COM2 port is connected to BMC
3
BMC_EXT
0
BMC COM port is isolated
1
BMC COM port is connected to COM2 connector
4
0
Reserved
5
0
Reserved
6
0
Reserved
7
0
Reserved
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