M55800A Atmel Corporation, M55800A Datasheet - Page 80

• Manufacturer Part Number: M55800A
• Manufacturer: Atmel Corporation

Specifications of M55800A

• Flash (kbytes): 0 Kbytes
• Pin Count: 176
• Max. Operating Frequency: 33 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 58
• Ext Interrupts: 58
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 3
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 72
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 8
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.3/5.0
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

13.3.3
Register Name:
Access Type:
Reset State:
Offset:
• SEC: Current Second (Code Label RTC_SEC)
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 (Code Label RTC_MIN)
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 (Code Label RTC_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 (Code Label RTC_AMPM)
This bit is the AM/PM indicator in 12-hour mode. It must be written at 0 if HRMOD in RTC_HMR defines 24-Hour mode.
0 = AM.
1 = PM.
80
31
23
15
–
–
–
7
–
AT91M5880A
RTC Time Register
AMPM
30
22
14
RTC_TIMR
Read/Write
0x0
0x08
–
6
29
21
13
–
5
28
20
12
–
4
SEC
MIN
27
19
11
–
3
HOUR
26
18
10
–
2
25
17
–
9
1
1745F–ATARM–06-Sep-07
24
16
–
8
0