M55800A Atmel Corporation, M55800A Datasheet - Page 92

• 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

WD Control Register
Name:
Access:
Offset:
• RSTKEY: Restart Key (Code Label WD_RSTKEY)
0xC071 = Watch Dog counter is restarted.
Other value = No effect.
WD Status Register
Name:
Access:
Reset Value: 0
Offset:
• WDOVF: Watchdog Overflow (Code Label WD_WDOVF)
0 = No watchdog overflow.
1 = A watchdog overflow has occurred since the last restart of the watchdog counter or since internal or external reset.
92
31
23
15
31
23
15
–
–
–
–
–
–
7
7
AT91X40 Series
WD_CR
Write Only
0x08
WD_SR
Read Only
0x0C
30
22
14
30
22
14
–
–
6
–
–
–
6
–
29
21
13
29
21
13
–
–
5
–
–
–
5
–
28
20
12
28
20
12
–
–
–
–
–
–
4
4
RSTKEY
RSTKEY
27
19
27
19
11
11
–
–
–
–
–
–
3
3
26
18
10
26
18
10
–
–
2
–
–
–
2
–
25
17
25
17
–
–
9
1
–
–
9
–
1
–
1354D–ATARM–08/02
WDOVF
24
16
24
16
–
–
–
–
–
8
0
8
0