Special Registers
EBX-11 Reference manual
63
Jumper and Status Register
JSR (READ/WRITE) 1D2h (or 1E2h via the CMOS setup)
D7
D6
D5
D4
D3
D2
D1
D0
Reserved
GPI
VB_SEL
BRM_SEL
Reserved
Reserved
Reserved
Reserved
Table 35: Jumper and Status Register Bit Assignments
Bit
Mnemonic
Description
D7
–
Reserved
— This bit has no function.
D6
GPI
General Purpose Input
— Indicates the status of V2[3-4].
0 =
Jumper out
1 =
Jumper in
Note:
This bit is read-only.
D5
VB_SEL
Video BIOS Selection
–
Indicates the status of jumper V2[5-6]
0 =
Jumper out, Secondary Video BIOS selected
1 =
Jumper in, Primary Video BIOS selected
Note:
This bit is read-only.
D4
BRM_SEL
BIOS Recovery Mode
–
Indicates the status of jumper V2[7-8]
0 =
Jumper out, BIOS recovery Mode selected
1 =
Jumper in, Runtime System BIOS selected
Note:
This bit is read-only. Consult factory for use of this function
D3-D0
–
Reserved
— These bits have no function.
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