at91rm3400 ATMEL Corporation, at91rm3400 Datasheet - Page 170

• Manufacturer Part Number: at91rm3400
• Description: Atmel Advanced At91 Arm Microcontroller
• Manufacturer: ATMEL Corporation

RTC Mode Register
Name:
Access Type:
• HRMOD: 12-/24-hour Mode
0 = 24-hour mode is selected.
1 = 12-hour mode is selected.
All non-significant bits read zero.
RTC Time Register
Name:
Access Type:
• SEC: Current Second
The range that can be set is 0 - 59 (BCD).
The lowest four bits encode the units. The higher bits encode the tens.
• MIN: Current Minute
The range that can be set is 0 - 59 (BCD).
The lowest four bits encode the units. The higher bits encode the tens.
• HOUR: Current Hour
The range that can be set is 1 - 12 (BCD) in 12-hour mode or 0 - 23 (BCD) in 24-hour mode.
• AMPM: Ante Meridiem Post Meridiem Indicator
This bit is the AM/PM indicator in 12-hour mode.
0 = AM.
1 = PM.
All non-significant bits read zero.
170
31
23
15
31
23
15
–
–
–
–
–
–
–
–
7
7
AT91RM3400
RTC_MR
Read/Write
RTC_TIMR
Read/Write
AMPM
30
22
14
30
22
14
–
–
–
6
–
–
6
29
21
13
29
21
13
–
–
–
5
–
–
5
28
20
12
28
20
12
–
–
–
–
–
4
4
SEC
MIN
27
19
11
27
19
11
–
–
–
–
–
3
3
HOUR
26
18
10
26
18
10
–
–
–
2
–
–
2
25
17
25
17
–
–
9
–
1
–
–
9
1
1790A–ATARM–11/03
HRMOD
24
16
24
16
–
–
–
–
8
0
8
0