Ictl Main Interrupt Priority And Int/Smi Select 1 Register —Mbar + 0X - Freescale Semiconductor MPC5200B User Manual

Interrupt Controller
7.2.4.7 ICTL Main Interrupt Priority and INT/SMI Select 1 Register —MBAR + 0x0518
Table 7-10. ICTL Main Interrupt Priority and INT/SMI Select 1 Register
msb 0 1
R Main1_pri
W
RESET: 0 0
16 17
R Main5_pri
W
RESET: 0 0
Bits Name
0:3 Main1_pri
4:7 Main2_pri
8:11 Main3_pri
12:15 Main4_pri
16:19 Main5_pri
20:23 Main6_pri
24:27 Main7_pri
28:31 Main8_pri
Note:
1. Main source 0 (Slice Timer 1) is not listed, it is fixed as both the highest priority main interrupt and to generate an SMI
interrupt output only.
7-12
2 3 4 5 6
Main2_pri
0 0 0 0 0
18 19 20 21 22
Main6_pri
0 0 0 0 0
Main interrupt source 1 (IRQ[1]) priority encoding value.
All four bits are used to set a priority value (higher value equals higher priority). MSbit is also
used as a bank bit to direct this interrupt source to SMI interrupt output (if bank = 1), or to
normal INT interrupt output (if bank = 0).
For interrupt sources set at the same priority value, default priority is the lower numbered
interrupt has higher priority. This means main source 1 has a higher default priority than main
source 2. See Note 1.
Main interrupt source 2 (IRQ[2] input pin) priority encoding value.
Main interrupt source 3 (IRQ[3] input pin) priority encoding value.
Main interrupt source 4 (LO_int) priority encoding value. LO_int is a collection of any
Peripheral Interrupts directed to this interrupt source. Peripheral interrupts sources are
directed to either LO_int, or to the critical interrupt source HI_int.
Main interrupt source 5 (RTC_periodic) priority encoding value.
Main interrupt source 6 (RTC_stopwatch and RTC_alarm) priority encoding value.
Main interrupt source 7 (GPIO_std) priority encoding value. GPIO_std is a collection of all
simple interrupt GPIO pins enabled for Interrupt operation.
Main Interrupt source 8 (GPIO_wkup) priority encoding value.
GPIO_wkup is a collection of all enabled WakeUp capable GPIO sources. WakeUp interrupt
sources also operate in normal powered-up modes so all GPIO interrupt sources are
represented by main interrupt sources 7 and 8 (also see Timer GPIOs in Reg7).
MPC5200B Users Guide, Rev. 1
7 8 9 10 11
Main3_pri
0 0 0 0
23 24 25 26 27
Main7_pri
0 0 0 0
Description
12 13 14 15
Main4_pri
0 0 0 0 0
28 29 30 31 lsb
Main8_pri
0 0 0 0 0
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