AT89C5132 Atmel Corporation, AT89C5132 Datasheet - Page 59

• Manufacturer Part Number: AT89C5132
• Manufacturer: Atmel Corporation

Specifications of AT89C5132

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-12C
• Max I/o Pins: 44
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Uart: 1
• Adc Channels: 2
• Adc Resolution (bits): 10
• Adc Speed (ksps): 22.7
• Sram (kbytes): 2.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 3.6
• Timers: 2
• Isp: UART/USB
• Watchdog: Yes

13.4
4173E–USB–09/07
Registers
Table 47. WDTRST Register
WDTRST (S:A6h Write only) – Watchdog Timer Reset Register
Reset Value = XXXX XXXXb
Table 48. WDTPRG Register
WDTPRG (S:A7h) – Watchdog Timer Program Register
Reset Value = XXXX X000b
Bit Number
Bit Number
7-0
7-3
2-0
7
7
-
-
Mnemonic
Mnemonic
WTO2:0
Bit
Bit
6
6
-
-
-
-
Description
Watchdog Control Value.
Description
Reserved
The values read from these Bits are indeterminate. Do not set these Bits.
Watchdog Timer Time-Out Selection Bits
Refer to Table 46 for time-out periods.
5
5
-
-
4
4
-
-
3
3
-
-
WTO2
2
2
-
AT89C5132
WTO1
1
1
-
WTO0
0
0
-
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