Interrupt source priority levels -10, Table 4-2 – Freescale Semiconductor MPC8260 User Manual
Page 182
System Interface Unit (SIU)
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
4-10
Freescale Semiconductor
relative ordering of the interrupts, but, in general, relative priorities are as shown. A single interrupt
priority number is associated with each table entry.
Note that the group and spread options, shown with YCC entries in
, are described in
Section 4.2.2.1, “SCC, FCC, and MCC Relative Priority.”
Table 4-2. Interrupt Source Priority Levels
Priority Level
Interrupt Source Description
Multiple Events
1
Highest
—
2
XSIU1 No
(TMCNT,PIT,PCI
1
= Yes)
3
XSIU2 (Grouped)
No (TMCNT,PIT,PCI
1
= Yes)
4
XSIU3 (Grouped)
No (TMCNT,PIT,PCI
1
= Yes)
5
XSIU4 (Grouped)
No (TMCNT,PIT,PCI
1
= Yes)
6
XCC1 Yes
7
XCC2
Yes
8
XCC3
Yes
9
XCC4
Yes
10
XSIU2 (Spread)
No (TMCNT,PIT,PCI
1
= Yes)
11
XCC5
Yes
12
XCC6
Yes
13
XCC7
Yes
14
XCC8
Yes
15
XSIU5 (Grouped)
No (TMCNT,PIT,PCI
1
= Yes)
16
XSIU6 (Grouped)
No (TMCNT,PIT,PCI
1
= Yes)
17
XSIU7 (Grouped)
No (TMCNT,PIT,PCI
1
= Yes)
18
XSIU8 (Grouped)
No (TMCNT,PIT,PCI
1
= Yes)
19
XSIU3 (Spread)
No (TMCNT,PIT,PCI
1
= Yes)
20
YCC1 (Grouped)
Yes
21
YCC2 (Grouped)
Yes
22
YCC3 (Grouped)
Yes
23
YCC4 (Grouped)
Yes
24
YCC5 (Grouped)
Yes
25
YCC6 (Grouped)
Yes
26
YCC7 (Grouped)
Yes