M55800A Atmel Corporation, M55800A Datasheet - Page 81
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
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13.3.4
Register Name:
Access Type:
Reset State:
Offset:
• CENT: Current Century (Code Label RTC_CENT)
The range that can be set is 19 - 20 (BCD).
The lowest four bits encode the units. The higher bits encode the tens.
• YEAR: Current Year (Code Label RTC_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 (Code Label RTC_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 (Code Label RTC_DAY)
The range that can be set is 1 - 7 (BCD).
The significance of the number (which number represents which day) is user defined as it has no effect on the date
counter.
• DATE: Current Date (Code Label RTC_DATE)
The range that can be set is 01 - 31 (BCD).
The lowest four bits encode the units. The higher bits encode the tens.
1745F–ATARM–06-Sep-07
31
23
15
–
7
–
RTC Calendar Register
DAY
30
22
14
RTC_CALR
Read/Write
0x01819819
0x0C
–
6
–
29
21
13
5
28
20
12
4
YEAR
27
19
11
3
CENT
DATE
MONTH
26
18
10
2
AT91M5880A
25
17
9
1
24
16
8
0
81
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