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4.6.1 Region Base Address Registers
MI_RBA[0:3] — Region Base Address Register
MSB
0
1
2
3
4
5
6
7
SPR 784 – 787
8
9
10
11
12
13
14
15
25
26
27
28
29
30
LSB
31
RA
RESET:
Unaffected by Reset
16
17
18
19
20
21
22
23
24
RA
Reserved
RESET:
Unaffected by Reset
Table 4-5 MI_RBA[0:3] Bit Descriptions
Bit(s)
Name
0:19
RA
Region address. This field defines the base address (most significant 20 bits) for the region.
Description
20:31
—
Reserved
4.6.2 Region Attribute Registers MI_RA[0:3] Description
,
MI_RA[0:3] — Region Attribute Register
MSB
0
1
2
3
4
5
6
SPR 816 – 819
7
8
9
10
11
12
13
14
15
RS
HRESET
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
LSB
31
RS
PP
RESERVED
G
CMPR1‘
U
U
RESERVED
HRESET
U
U
U
U
U
U
0
0
0
U
U
0
0
0
NOTES:
1. Available only on the MPC556.
MPC555 / MPC556
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USER’S MANUAL
Rev. 15 October 2000
MOTOROLA
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