M55800A Atmel Corporation, M55800A Datasheet - Page 80
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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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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
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