M55800A Atmel Corporation, M55800A Datasheet - Page 78
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M55800A
Manufacturer Part Number
M55800A
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(153 pages)
3.M55800A.pdf
(29 pages)
4.M55800A.pdf
(256 pages)
5.M55800A.pdf
(28 pages)
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
- M40800 PDF datasheet
- M40800 PDF datasheet #2
- M55800A PDF datasheet #3
- M55800A PDF datasheet #4
- M55800A PDF datasheet #5
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- Download datasheet (5Mb)
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
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