AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 84

• 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: -

13.3.5
Name:
Access:
Address:
• WDPEND: Watchdog Pending
0: No Watchdog pending.
1: A Watchdog pending has occurred.
• WDOVF: Watchdog Overflow
0: No Watchdog overflow.
1: A Watchdog overflow has occurred.
• PENDING: Watchdog Pending Status
0: Watchdog counter is over 0x00FF (not pending).
1: Watchdog is pending window (between 0x00FF and 0x0000).
84
31
23
15
–
–
–
7
–
AT91SAM7A1
WD Status Register
WD_SR
Read-only
0xFFFA0070
30
22
14
–
–
–
6
–
29
21
13
–
–
–
5
–
28
20
12
–
–
–
4
–
27
19
11
–
–
–
3
–
26
18
10
–
–
–
2
–
WDOVF
25
17
–
–
9
–
1
6048B–ATARM–29-Jun-06
PENDING
WDPEND
24
16
–
–
8
0