PIC18F4220-I/P Microchip Technology Inc., PIC18F4220-I/P Datasheet - Page 248

• Manufacturer Part Number: PIC18F4220-I/P
• Description: Microcontroller; 4 KB Flash; 512 RAM; 256 EEPROM; 36 I/O; 40-Pin-PDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4220-I/P

• A/d Inputs: 13-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 4K Bytes
• Ram Size: 512 Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F2220/2320/4220/4320
REGISTER 23-14: WDTCON REGISTER
TABLE 23-2:
DS39599C-page 246
CONFIG2H
RCON
WDTCON
Legend: Shaded cells are not used by the Watchdog Timer.
Name
bit 7-1
bit 0
SUMMARY OF WATCHDOG TIMER REGISTERS
IPEN
Bit 7
—
—
Unimplemented: Read as ‘0’
SWDTEN: Software Controlled Watchdog Timer Enable bit
1 = Watchdog Timer is on
0 = Watchdog Timer is off
bit 7
Legend:
R = Readable bit
U = Unimplemented bit, read as ‘0’
Note 1: This bit has no effect if the configuration bit, WDTEN (CONFIG2H<0>), is enabled.
U-0
—
Bit 6
—
—
—
U-0
—
Bit 5
—
—
—
U-0
—
WDTPS3
Bit 4
RI
—
U-0
—
WDTPS2
Bit 3
TO
—
W = Writable bit
- n = Value at POR
U-0
—
WDTPS2
Bit 2
PD
—
U-0
—
 2003 Microchip Technology Inc.
WDTPS0
Bit 1
POR
U-0
—
—
SWDTEN
SWDTEN
WDTEN
R/W-0
Bit 0
BOR
bit 0