AT91SAM7S16-MU Atmel, AT91SAM7S16-MU Datasheet - Page 94

• Manufacturer Part Number: AT91SAM7S16-MU
• Description: MCU ARM 16K HI SPD FLASH 48-QFN
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S16-MU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-QFN Exposed Pad
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

• WDDIS: Watchdog Disable
0: Enables the Watchdog Timer.
1: Disables the Watchdog Timer.
16.4.3
Register Name:
Access Type:
• WDUNF: Watchdog Underflow
0: No Watchdog underflow occurred since the last read of WDT_SR.
1: At least one Watchdog underflow occurred since the last read of WDT_SR.
• WDERR: Watchdog Error
0: No Watchdog error occurred since the last read of WDT_SR.
1: At least one Watchdog error occurred since the last read of WDT_SR.
94
31
23
15
–
–
–
7
–
AT91SAM7S Series Preliminary
Watchdog Timer Status Register
30
22
14
WDT_SR
–
–
–
6
–
Read-only
29
21
13
–
–
–
5
–
28
20
12
–
–
–
4
–
27
19
11
–
–
–
3
–
26
18
10
–
–
–
2
–
WDERR
25
17
–
–
9
–
1
6175K–ATARM–30-Aug-10
WDUNF
24
16
–
–
8
–
0