M55800A Atmel Corporation, M55800A Datasheet - Page 84

• 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

13.3.7
Register Name:
Access Type:
Reset State:
Offset:
• ACKUPD: Acknowledge for Update (Code Label RTC_ACKUPD)
0 = Time and Calendar registers cannot be updated.
1 = Time and Calendar registers can be updated.
• ALARM: Alarm Flag (Code Label RTC_ALARM)
0 = No alarm matching condition occurred.
1 = An alarm matching condition has occurred.
• SEC: Second Event (Code Label RTC_SEC)
0 = No second event has occurred since the last clear.
1 = At least one second event has occurred since the last clear.
• TIMEV: Time Event (Code Label RTC_TIMEV)
0 = No time event has occurred since the last clear.
1 = At least one time event has occurred since the last clear.
The time event is selected in the TEVSEV field in RTC_CR and can be any one of the following events: minute change,
hour change, noon, midnight (day change).
• CALEV: Calendar Event (Code Label RTC_CALEV)
0 = No calendar event has occurred since the last clear.
1 = At least one calendar event has occurred since the last clear.
The calendar event is selected in the CEVSEL field in RTC_CR and can be any one of the following events: week change,
month change, year change.
84
31
23
15
–
–
–
7
–
AT91M5880A
RTC Status Register
30
22
14
RTC_SR
Read-only
0x0
0x18
–
–
–
6
–
29
21
13
–
–
–
5
–
CALEV
28
20
12
–
–
–
4
TIMEV
27
19
11
–
–
–
3
SEC
26
18
10
–
–
–
2
ALARM
25
17
–
–
–
9
1
1745F–ATARM–06-Sep-07
ACKUPD
24
16
–
–
8
–
0