AT91M63200-25AI Atmel, AT91M63200-25AI Datasheet - Page 136

• Manufacturer Part Number: AT91M63200-25AI
• Description: IC ARM7 MCU 176 TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91M63200-25AI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 58
• Program Memory Type: OTP
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-TQFP, 176-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

WD Clock Mode Register
Name:
Access:
Reset Value:
•
•
•
136
WDCLKS
0
0
1
1
WDCLKS: Clock Selection
HPCV: High Preload Counter Value
Counter is preloaded when Watchdog counter is restarted with bits 0 to 11 set (FFF) and bits 12 to 15 equaling HPCV.
CKEY: Clock Access Key
Used only when writing WD_CMR. CKEY is read as 0.
0x06E: Write access in WD_CMR is allowed.
Other value: Write access in WD_CMR is prohibited.
CKEY
31
23
15
–
–
7
0
1
0
1
Clock Selected
MCKI/32
MCKI/128
MCKI/1024
MCKI/4096
AT91M63200
30
22
14
WD_CMR
Read/Write
0
–
–
6
–
29
21
13
–
–
5
28
20
12
–
–
4
CKEY
HPCV
27
19
11
–
–
3
26
18
10
–
–
2
25
17
–
–
9
1
WDCLKS
24
16
–
–
8
0