Interrupt Controller
MPC5200B Users Guide, Rev. 1
Freescale Semiconductor 7-13
7.2.4.8 ICTL Main Interrupt Priority and INT /SMI Select 2 Register—MBAR + 0x051C
Table7-1 1. ICTL Main Interrupt Priority and INT/SMI Select 2 Register
msb 012345678 9 101112131415
R Main9_pri Main10_pri Main11_pri Main12_pri
W
RESET:000000000 0 0 000 0 0
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 lsb
R Main13_pri Main14_pri Main15_pri Main16_pri
W
RESET:000000000 0 0 000 0 0
Bits Name Description
0:3 Main9_pri Main interrupt source 9 ( TMR0) priority encoding value.
All 4bits are used to set a priority value (high er value equals higher priority). The msb 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 9 has a higher default priority than main
source 10.
Timer 0 is one of eight internal timer resources that can be configured as input capture,
output compare, or PWM output. As such, there is an I/O pin associated with each timer. The
timer can use this pin as GPIO, in which case the internal timer function becomes available.
These eight timers complete the MPC5200B GPIO structure. All potential GPIO interrupt
sources are represented by main sources 7, 8, and 9–16.
4:7 Main10_pri Main interrupt source 10 ( TMR1) priority encoding value.
8:11 Main11_pri Main interrupt source 11 (TMR2) pr iority encoding value.
12:15 Main12_pri Main in terrupt source 12 (TMR3) priority encoding value.
16:19 Main13_pri Main in terrupt source 13 (TMR4) priority encoding value.
20:23 Main14_pri Main in terrupt source 14 (TMR5) priority encoding value.
24:27 Main15_pri Main in terrupt source 15 (TMR6) priority encoding value. See Note 1.
28:31 Main16_pri Main in terrupt source 16 (TMR7) priority encoding value. See Note 1.
Note:
1. This timer has WakeUp functionality and therefore can provide a WakeUp interrupt source.