AT91SAM7S32-AI ATMEL [ATMEL Corporation], AT91SAM7S32-AI Datasheet - Page 59

• Manufacturer Part Number: AT91SAM7S32-AI
• Description: AT91 ARM Thumb-based Microcontrollers
• Manufacturer: ATMEL [ATMEL Corporation]

Real-time Timer Mode Register
Register Name: RTT_MR
Access Type:
• RTPRES: Real-time Timer Prescaler Value
Defines the number of SLCK periods required to increment the real-time timer. RTPRES is defined as follows:
RTPRES = 0: The Prescaler Period is equal to 2
RTPRES
• ALMIEN: Alarm Interrupt Enable
0 = The bit ALMS in RTT_SR has no effect on interrupt.
1 = The bit ALMS in RTT_SR asserts interrupt.
• RTTINCIEN: Real-time Timer Increment Interrupt Enable
0 = The bit RTTINC in RTT_SR has no effect on interrupt.
1 = The bit RTTINC in RTT_SR asserts interrupt.
• RTTRST: Real-time Timer Restart
1 = Reloads and restarts the clock divider with the new programmed value. This also resets the 32-bit counter.
6071A–ATARM–28-Oct-04
31
23
15
–
–
7
0: The Prescaler Period is equal to RTPRES.
Read/Write
30
22
14
–
–
6
29
21
13
–
–
5
16
28
20
12
–
–
4
RTPRES
RTPRES
27
19
11
–
–
3
AT91SAM7S32 Preliminary
RTTRST
26
18
10
–
2
RTTINCIEN
25
17
–
9
1
ALMIEN
24
16
–
8
0
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