AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 88
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AT91SAM7X128
Manufacturer Part Number
AT91SAM7X128
Description
MCU 32-Bit 91S ARM7TDMI RISC 128KB Flash 1.8V/3.3V 100-Pin LQFP
Manufacturer
Atmel
Datasheet
1.AT91SAM7X512-AU-999.pdf
(687 pages)
Specifications of AT91SAM7X128
Package
100LQFP
Device Core
ARM7TDMI
Family Name
91S
Maximum Speed
55 MHz
Ram Size
32 KB
Program Memory Size
128 KB
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Program Memory Type
Flash
Number Of Programmable I/os
62
Interface Type
CAN/Ethernet/SPI/I2S/TWI/USART/USB
On-chip Adc
8-chx10-bit
Operating Temperature
-40 to 85 °C
Number Of Timers
3
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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.
88
Offset
0x00
0x04
0x08
31
23
15
–
–
7
–
Watchdog Timer (WDT) User Interface
AT91SAM7X512/256/128 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
–
6120H–ATARM–17-Feb-09
0x3FFF_2FFF
0x0000_0000
Reset Value
WDRSTT
-
24
16
–
8
–
0
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