SAM3N00B Atmel Corporation, SAM3N00B Datasheet - Page 225
SAM3N00B
Manufacturer Part Number
SAM3N00B
Description
Manufacturer
Atmel Corporation
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13.5.1
Register Name:
Address:
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 ≠ 0: The prescaler period is equal to RTPRES * SCLK period.
• 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
0 = No effect.
1 = Reloads and restarts the clock divider with the new programmed value. This also resets the 32-bit counter.
11011A–ATARM–04-Oct-10
11011A–ATARM–04-Oct-10
31
23
15
–
–
7
Real-time Timer Mode Register
30
22
14
0x400E1430
Read-write
–
–
6
RTT_MR
29
21
13
–
–
5
16
* SCLK period.
28
20
12
–
–
4
RTPRES
RTPRES
27
19
11
–
–
3
RTTRST
26
18
10
–
2
RTTINCIEN
25
17
–
9
1
SAM3N
SAM3N
ALMIEN
24
16
–
8
0
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