AT91SAM7S512-MU Atmel, AT91SAM7S512-MU Datasheet - Page 92

• Manufacturer Part Number: AT91SAM7S512-MU
• Description: MCU ARM 512K HI SPD FLASH 64-QFN
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S512-MU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K 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: 64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
• 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: -

16.4
Table 16-1.
16.4.1
Register Name:
Access Type:
• WDRSTT: Watchdog Restart
0: No effect.
1: Restarts the Watchdog.
• KEY: Password
Should be written at value 0xA5. Writing any other value in this field aborts the write operation.
92
Offset
0x00
0x04
0x08
31
23
15
–
–
7
–
Watchdog Timer (WDT) User Interface
AT91SAM7S Series Preliminary
Watchdog Timer Control Register
Register Mapping
Register
Control Register
Mode Register
Status Register
30
22
14
WDT_CR
–
–
6
–
Write-only
29
21
13
–
–
5
–
28
20
12
–
–
4
–
KEY
Name
WDT_CR
WDT_MR
WDT_SR
27
19
11
–
–
3
–
26
18
10
–
–
2
–
Read-write Once
Read-only
Write-only
Access
25
17
–
9
–
1
–
6175K–ATARM–30-Aug-10
0x3FFF_2FFF
0x0000_0000
Reset
WDRSTT
-
24
16
–
8
–
0