Periodic Interrupt Timer and Real Time Interrupt (PIT_RTI)
MPC5510 Microcontroller Family Reference Manual, Rev. 1
28-8
Freescale Semiconductor
Preliminary
28.3.2.6
PIT Timer Enable Register (PITEN)
This register enables the PIT timers.
28.3.2.7
PIT Control Register (PITCTRL)
This register controls whether the clock for the timers 1–8 is enabled. The RTI timer (timer 0) runs on a
separate clock (XOSC) that is controlled by the CRP and PLL.
Table 28-7. PITINTSEL Field Descriptions
Field
Description
0–22
Reserved.
23–30
ISELn
Interrupt Selector.
0 The timer will trigger a DMA channel
1 The timer will generate an interrupt if enabled
31
Reserved.
Offset: 0x010C
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
PEN8 PEN7 PEN6 PEN5 PEN4 PEN3 PEN2 PEN1 PEN0
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 28-7. PIT Timer Enable Register (PITEN)
Table 28-8. PITEN Field Descriptions
Field
Description
bits 0–22
Reserved.
PENn
Timer Enable Bit.
0 Timer will be disabled
1 Timer will be active