Atmel SAM4S-XPLD Atmel ATSAM4S-XPLD ATSAM4S-XPLD Hoja De Datos
Los códigos de productos
ATSAM4S-XPLD
272
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
16.6.4 RTC Calendar Register
Name: RTC_CALR
Address:
0x400E146C
Access: Read-write
• CENT: Current Century
The range that can be set is 19 - 20 (gregorian) or 13-14 (persian) (BCD).
The lowest four bits encode the units. The higher bits encode the tens.
• YEAR: Current Year
The range that can be set is 00 - 99 (BCD).
The lowest four bits encode the units. The higher bits encode the tens.
• MONTH: Current Month
The range that can be set is 01 - 12 (BCD).
The lowest four bits encode the units. The higher bits encode the tens.
• DAY: Current Day in Current Week
The range that can be set is 1 - 7 (BCD).
The coding of the number (which number represents which day) is user-defined as it has no effect on the date counter.
• DATE: Current Day in Current Month
The range that can be set is 01 - 31 (BCD).
The lowest four bits encode the units. The higher bits encode the tens.
All non-significant bits read zero.
31
30
29
28
27
26
25
24
–
–
DATE
23
22
21
20
19
18
17
16
DAY
MONTH
15
14
13
12
11
10
9
8
YEAR
7
6
5
4
3
2
1
0
–
CENT