AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 87

• Manufacturer Part Number: AT91SAM7A1-AU
• Description: IC ARM7 MCU 32BIT ROMLESS144LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7A1-AU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 40MHz
• Connectivity: CAN, EBI/EMI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 49
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• For Use With: AT91SAM7A1-EK - BOARD EVAL FOR AT91SAM7A1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

13.3.9
Name:
Access:
Address:
This register can only be accessed in test mode.
• TMEN: Test Mode Enabled
0: Test Mode Enabled.
1: Normal operation of Watchdog.
• WDRV: Watchdog Reset Value
When read, this bit contains the value of the watchdog reset output.
Writing to this register has no effect; it does not change the value which is read.
This bit is reset when a reset timeout occurs.
• WDIV: Watchdog Interrupt Value
When read, this bit contains the value of the interrupt output.
Writing to this register has no effect, it does not change the value which is read.
This bit is reset when a reset timeout occurs.
6048B–ATARM–29-Jun-06
31
23
15
–
–
–
7
–
WD Test Register
WD_TR
Read-only
0xFFFA0080
30
22
14
–
–
–
6
–
29
21
13
–
–
–
5
–
28
20
12
–
–
–
4
–
27
19
11
–
–
–
3
–
WDIV
26
18
10
–
–
–
2
AT91SAM7A1
WDRV
25
17
–
–
9
–
1
TMEN
24
16
–
–
8
–
0
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