Motorola MVME2300 Series - Manual (Page 126)

2-56 Computer Group Literature Center Web Site
Raven PCI Bridge ASIC
2
CONFIG_ADDRESS Register
The description of the CONFIG_ADDRESS register is presented in three
perspectives: from the PCI bus, from the MPC bus in big-endian mode, and
from the MPC bus in little-endian mode. Note that the view from the PCI
bus is purely conceptual, since there is no way to access the
CONFIG_ADDRESS register from the PCI bus.
Conceptual perspective from the PCI bus
Perspective from the MPC bus in Big-Endian mode
Offset $CFB $CFA $CF9 $CF8
Bit 3
1 3
0 2
9 2
8 2
7 2
6 2
5 2
4 2
3 2
2 2
1 2
0 1
9 1
8 1
7 1
6 1
5 1
4 1
3 1
2 1
1 1
0 9 8 7 6 5 4 3 2 1 0
Name CONFIG_ADDRESS
EN
BUS DEV FUN REG
Operation
R/W
R R/W R/W R/W R/W
R R
Reset
1
$00 $00 $00 $0 $00
0 0
Offset $CF8 $CF9 $CFA $CFB
Bit (DH)
0 1 2 3 4 5 6 7 8 9
1
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 2
0 2
1 2
2 2
3 2
4 2
5 2
6 2
7 2
8 2
9 3
0 3
1
Name CONFIG_ADDRESS
REG DEV FUN BUS
EN
Operation R/W
R R
R/W R/W R/W
R/W
R
Reset $00
0 0
$00 $0 $00
1
$00