SAM3A4C Atmel Corporation, SAM3A4C Datasheet - Page 240
SAM3A4C
Manufacturer Part Number
SAM3A4C
Description
Manufacturer
Atmel Corporation
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14.5.1
Name:
Address:
Access:
• 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
0 = No effect.
1 = Reloads and restarts the clock divider with the new programmed value. This also resets the 32-bit counter.
240
240
31
23
15
–
–
7
SAM3X/A
SAM3X/A
Real-time Timer Mode Register
0: The prescaler period is equal to RTPRES * SCLK period.
RTT_MR
0x400E1A30
Read-write
30
22
14
–
–
6
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
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
ALMIEN
24
16
–
8
0
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