1 periodic interval timer mode register – Rainbow Electronics AT91CAP9S250A User Manual
Page 109
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109
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
17.4.1
Periodic Interval Timer Mode Register
Register Name:
PIT_MR
Access Type:
Read/Write
• PIV: Periodic Interval Value
Defines the value compared with the primary 20-bit counter of the Periodic Interval Timer (CPIV). The period is equal to
(PIV + 1).
• PITEN: Period Interval Timer Enabled
0 = The Periodic Interval Timer is disabled when the PIV value is reached.
1 = The Periodic Interval Timer is enabled.
• PITIEN: Periodic Interval Timer Interrupt Enable
0 = The bit PITS in PIT_SR has no effect on interrupt.
1 = The bit PITS in PIT_SR asserts interrupt.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
PITIEN
PITEN
23
22
21
20
19
18
17
16
–
–
–
–
PIV
15
14
13
12
11
10
9
8
PIV
7
6
5
4
3
2
1
0
PIV
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