AT89C5115 Atmel Corporation, AT89C5115 Datasheet - Page 70

• Manufacturer Part Number: AT89C5115
• Manufacturer: Atmel Corporation

Specifications of AT89C5115

• Flash (kbytes): 16 Kbytes
• Max. Operating Frequency: 40 MHz
• Cpu: 8051-12C
• Max I/o Pins: 20
• Uart: 1
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 62.5
• Sram (kbytes): 0.5
• Eeprom (bytes): 2048
• Self Program Memory: API
• Operating Voltage (vcc): 3.0 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

70
AT89C5115
Table 52. WDTRST Register
WDTRST (S:A6h Write Only) – Watchdog Timer Enable register
Reset Value = 1111 1111b
Note:
Number
Bit
7
-
7
The WDRST register is used to reset/enable the WDT by writing 1EH then E1H in
sequence without instruction between these two sequences.
Mnemonic Description
Bit
6
-
-
Watchdog Control Value
5
-
4
-
3
-
2
-
1
-
4128G–8051–02/08
0
-