M55800A Atmel Corporation, M55800A Datasheet - Page 80
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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13.3.3
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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