Motorola MVME5100 사용자 설명서
PCI Local Bus
http://www.motorola.com/computer/literature
1-31
1
Extended Features Register 1
This register is used to read if a PMC board is present or if a PCI expansion
slot is present. Exceptions to the PowerPlus II Programming Specification
are included in the following table.
slot is present. Exceptions to the PowerPlus II Programming Specification
are included in the following table.
PMC1P_L
PMC Module 1 Present. If set, there is no PMC module installed
in position 1. If cleared, the PMC module is installed
in position 1. If cleared, the PMC module is installed
PMC2P_L
PMC Module 2 Present. If set, there is no PMC module installed
in position 2. If cleared, the PMC module is installed.
in position 2. If cleared, the PMC module is installed.
MMEZ1_P_L Memory Mezzanine 1 present. When set there is no memory
mezzanine 1 present. When cleared, there is a memory mezzanine
1 present.
1 present.
MMEZ2_P_L Memory Mezzanine 2 present. When set, there is no memory
mezzanine 1 present. When cleared, there is a memory mezzanine
2 present.
2 present.
Table 1-16. Extended Features Register 1
REG
Extended Features Register 1 - Offset 80F0h
BIT
RD0
RD1
RD2
RD3
RD4
RD5
RD6
RD7
FIELD
USB
V
1
_
OK
(N
O
T
U
S
E
D
)
USB
V
0
_
OK
(NOT USED)
T
M
PR
SNT
_
L
(NOT USED)
PM
C
1
P
_
L
PM
C
2
P
_
L
P
M
C
2_ER
D
Y
(NOT USED)
MMEZ
1_P
_L
MMEZ
2_P
_L
OPER
R
R
R
R
R
R
R
R
RESET
x
x
x
x
x
x
x
x
REQUIRED
OR
OPTIONAL
O
O
O
O
O
O
O
O