AT91SAM7S512-MU-999 Atmel, AT91SAM7S512-MU-999 Datasheet - Page 92
AT91SAM7S512-MU-999
Manufacturer Part Number
AT91SAM7S512-MU-999
Description
IC MCU ARM7 512KB FLASH 64-VQFN
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7S512-MU-999
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
-
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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
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