Motorola MPC533 Reference Manual page 204

BBC Programming Model
Table 4-8. MI_GRA Global Region Attribute Register
Bits Name
4:19 — Reserved
20:21 PP Protection Bits
00 Supervisor – No Access, User – No Access.
01 Supervisor – Fetch, User – No Access.
1x Supervisor – Fetch, User – Fetch.
22:24 — Reserved
25 G Guard attribute for region
0 Fetch is not prohibited from region. Region is not guarded.
1 Fetch is prohibited from guarded region. An exception will occur under such attempt.
1
26:27 CMPR Compressed Region.
x0 The region is not restricted
01 Region is considered a non-compressed code region Access to the region is allowed only in
11 Region is considered a compressed code region. Access to the region is allowed only in
28 BTBINH BTB Inhibit region
0 BTB operation is not prohibited for current memory region
1 BTB operation is prohibited for current memory region.
29:31 — Reserved
1
This bit is available only on the MPC534.
The MI_GRA register should be programmed to enable fetch
access (PP and G bits) before RCPU MSR[IR] is set.
4.6.2.5 External Interrupt Relocation Table Base Address Register
(EIBADR)
,
MSB 1
0
Field
HRESET
16 17
Field
HRESET Undefined
Addr
Figure 4-11. External Interrupt Relocation Table Base Address Register (EIBADR)
4-22
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Bits Description (continued)
"Decompression Off" mode
"Decompression On" mode
2 3 4 5
18 19 20 21
BA
MPC533 Reference Manual
Description
NOTE
6 7 8 9
BA
Undefined
22 23 24 25
0000_0000_0000
SPR 529
10 11 12 13
26 27 28 29
—
MOTOROLA
14 15
30 LSB
31