4-20
MPC8260 PowerQUICC II UserÕs Manual
MOTOROLA
Part II. ConÞguration and Reset
Table 4-6 describes SCPRR_H Þelds.
The CPM low interrupt priority register (SCPRR_L), shown in Figure 4-13, deÞnes
prioritization of SCCs.
Table 4-7 describes SCPRR_L Þelds.
Table 4-6. SCPRR_H Field Descriptions
Bits
Name
Description
0Ð2
XC1PÐXCC1
Priority order. DeÞnes which FCC/MCC asserts its request in the XCC1 priority position.
The user should not program the same FCC/MCC to more than one priority position (1Ð8).
These bits can be changed dynamically.
000 FCC1 asserts its request in the XCC1 position.
001 FCC2 asserts its request in the XCC1 position.
010 FCC3 asserts its request in the XCC1 position.
011 XCC1 position not active.
100 MCC1 asserts its request in the XCC1 position.
101 MCC2 asserts its request in the XCC1 position.
110 XCC1 position not active.
111 XCC1 position not active.
3Ð12
XC2PÐXC8P
Same as XC1P, but for XCC2ÐXCC8
13Ð15
Ñ
Reserved, should be cleared.
Bits
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Field
YC1P
YC2P
YC3P
YC4P
Ñ
Reset
000
001
010
011
0000
R/W
R/W
Addr
0x10C18
Bits
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Field
YC5P
YC6P
YC7P
YC8P
Ñ
Reset
100
101
110
111
0000
R/W
R/W
Addr
0x10C20
Figure 4-13. CPM Low Interrupt Priority Register (SCPRR_L)
Table 4-7. SCPRR_L Field Descriptions
Bits
Name
Description
0Ð2
YC1PÐYCC1 Priority order. DeÞnes which SCC asserts its request in the YCC1 priority position. Do not
program the same SCC to multiple priority positions. This Þeld can be changed dynamically.
000 SCC1 asserts its request in the YCC1 position.
001 SCC2 asserts its request in the YCC1 position.
010 SCC3 asserts its request in the YCC1 position.
011 SCC4 asserts its request in the YCC1 position.
1XX YCC1 position is not active.
Содержание MPC8260 PowerQUICC II
Страница 1: ...MPC8260UM D 4 1999 Rev 0 MPC8260 PowerQUICC II UserÕs Manual ª ª ...
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Страница 88: ...1 18 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part I Overview ...
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Страница 138: ...Part II iv MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part II Configuration and Reset ...
Страница 184: ...4 46 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part II ConÞguration and Reset ...
Страница 202: ...Part III vi MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part III The Hardware Interface ...
Страница 266: ...8 34 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part III The Hardware Interface ...
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Страница 430: ...Part IV viii MOTOROLA Part IV Communications Processor Module ...
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Страница 1002: ...Index 22 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA INDEX ...
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