Motorola MVME5100 用户手册
Registers
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2-101
2
Revision ID/ Class Code Registers
REVID
Revision ID. This register identifies the PHB revision
level. This register is duplicated in the PPC Registers.
level. This register is duplicated in the PPC Registers.
CLASS
Class Code. This register identifies PHB as the following:
Base Class Code
$06
PCI Bridge Device
Subclass Code
$00
PCI Host Bridge
Program Class Code
$00
Not Used
Header Type Register
The Header Type Register (Header) identifies the PHB as the following:
Header Type: $00 - Single Function Configuration Header
Offset
$08
Bit
3
1
1
3
0
0
2
9
9
2
8
8
2
7
7
2
6
6
2
5
5
2
4
4
2
3
3
2
2
2
2
1
1
2
0
0
1
9
9
1
8
8
1
7
7
1
6
6
1
5
5
1
4
4
1
3
3
1
2
2
1
1
1
1
0 9 8 7 6 5 4 3 2 1 0
0 9 8 7 6 5 4 3 2 1 0
Name
CLASS
REVID
Operation
R
R
Reset
$060000
$01
Offset
$0C
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
HEADER
Operation
R
R
R
R
Reset
$00
$00
$00
$00