M55800A Atmel Corporation, M55800A Datasheet - Page 78

• 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

13.3.1
Register Name:
Access:
Offset:
• UPDTIM: Update Request Time Register (Code Label RTC_UPDTIM)
0 = Enables the RTC time counting.
1 = Stops the RTC time counting.
Time counting consists of second, minute and hour counters. Time counters can be programmed once this bit is set.
• UPDCAL: Update Request Calendar Register (Code Label RTC_UPDCAL)
0 = Disables the RTC calendar counting.
1 = Stops the RTC calendar counting.
Calendar counting consists of day, date, month, year and century counters. Calendar counters can be programmed once
this bit is set.
• TEVSEL: Time Event Selection
The event which generates the flag TIMEV in RTC_SR (Status Register) depends on the value of TEVSEL.
• CEVSEL: Calendar Event Selection
The event which generates the flag CALEV in RTC_SR depends on the value of CEVSEL.
78
0
0
1
1
0
0
1
1
31
23
15
–
–
–
7
–
CEVSEL
TEVSEL
AT91M5880A
RTC Mode Register
0
1
0
1
0
1
0
1
30
22
14
RTC_MR
Read/Write
0x00
–
–
–
6
–
Event
Week change
Month change
Year change
Reserved
Minute change
Hour change
Every day at midnight
Every day at noon
Event
(every January 1st at time 00:00:00)
29
21
13
(every Monday at time 00:00:00)
(every 01 of each month at time 00:00:00)
–
–
–
5
–
28
20
12
–
–
–
4
–
27
19
11
–
–
–
–
3
26
18
10
–
–
–
2
–
Code Label
RTC_CEVSEL_WEEK_CHG
RTC_CEVSEL_MONTH_CHG
RTC_CEVSEL_YEAR_CHG
–
Code Label
RTC_TEVSEL_MN_CHG
RTC_TEVSEL_HR_CHG
RTC_TEVSEL_EVDAY_NOON
RTC_TEVSEL_EVDAY_MD
UPDCAL
25
17
–
9
1
1745F–ATARM–06-Sep-07
CEVSEL
TEVSEL
UPDTIM
24
16
–
8
0