Periodic Interrupt Timer and Real Time Interrupt (PIT_RTI)
MPC5510 Microcontroller Family Reference Manual, Rev. 1
Freescale Semiconductor
28-7
Preliminary
28.3.2.5
PIT Interrupt/DMA Select Registers (PITINTSEL)
This register decides whether a channel generates an interrupt or is used for DMA triggering.
Offset: 0x0104
Access: User read/write
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R
0
0
0
0
0
0
0
TIE8
TIE7
TIE6
TIE5
TIE4
TIE3
TIE2
TIE1
RTIE
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 28-5. PIT Interrupt Enable Register (PITINTEN)
Table 28-6. PITINTEN Field Descriptions
Field
Description
bits 0–22
Reserved.
TIEn
Timer Interrupt Enable Bit.
0 Interrupt requests from Timer x are disabled
1 Interrupt will be requested whenever TIFx is set
When an interrupt is pending (TIF/RTIF set), enabling the interrupt will immediately cause an interrupt
event. To avoid this, the associated TIF/RTIF flag must be cleared first.
RTIE
Real Time Interrupt Enable Bit.
0 Interrupt requests from RTI are disabled
1 Interrupt will be requested whenever RTIF is set
Offset: 0x0108
Access: User read/write
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R
0
0
0
0
0
0
0
ISEL8 ISEL7 ISEL6 ISEL5 ISEL4 ISEL3 ISEL2 ISEL1
1
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Figure 28-6. PIT Interrupt/DMA Select Registers (PITINTSEL)