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CP3002-RC/CP3002-RA
4.3
CP3002-RC/CP3002-RA-Specific Registers
The following registers are special registers which the CP3002-RC/CP3002-RA uses to watch
the onboard hardware special features and the CompactPCI control signals.
Normally, only the system uEFI BIOS uses these registers, but they are documented here for
application use as required.
Note ...
Take care when modifying the contents of these registers as the system uEFI
BIOS may be relying on the state of the bits under its control.
4.3.1
Status Register 0 (STAT0)
The Status Register 0 holds general/common status information.
Table 4-6:
Status Register 0 (STAT0)
REGISTER NAME
ADDRESS
BIT
NAME
7
Res.
Reserved
6
BBEI
uEFI BIOS boot end indication:
0 = uEFI BIOS is booting
1 = uEFI BIOS boot is finished
5 - 4
BFSS
Boot Flash selection status:
00 = Primary boot Flash active
01 = Secondary boot Flash active
10 = External boot Flash active
11 = Reserved
3
DIP4
uEFI BIOS boot settings jumper, JP3
0 = Clear uEFI BIOS settings and use the default values
1 = Boot using the currently saved uEFI BIOS settings
2
Res.
Reserved
1
DIP2
uEFI BIOS boot configuration jumper, JP4
0 = Boot from alternative SPI Flash
1 = Boot from default SPI Flash
0
Res.
Reserved
ID 1039-3625, Rev. 1.0
STATUS REGISTER 0 (STAT0)
0x280
DESCRIPTION
Configuration
RESET
ACCESS
VALUE
0
R
1
R
N/A
R
N/A
R
0
R
N/A
R
0
R
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