PIC18F4580-I/P Microchip Technology Inc., PIC18F4580-I/P Datasheet - Page 275

• Manufacturer Part Number: PIC18F4580-I/P
• Description: 40 PIN, 32 KB FLASH, 1536 RAM, 36 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4580-I/P

• A/d Inputs: 11-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: CAN/I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 32K Bytes
• Ram Size: 1.5K 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

24.2.2
The WDT has a postscaler that can extend the WDT
Reset period. The postscaler is selected at the time of
device programming by the value written to the
CONFIG2H Configuration register.
FIGURE 24-1:
TABLE 24-2:
 2004 Microchip Technology Inc.
CONFIG2H
RCON
WDTCON
Legend: Shaded cells are not used by the Watchdog Timer.
Name
WDT POSTSCALER
Note:
WDTEN
Configuration bit
SUMMARY OF WATCHDOG TIMER REGISTERS
IPEN
Bit 7
—
—
WDTPS2:WDTPS0 are bits in register CONFIG2H.
WDT Timer
WATCHDOG TIMER BLOCK DIAGRAM
Bit 6
SWDTEN bit
—
—
—
Bit 5
—
—
—
Bit 4
—
RI
—
8-to-1 MUX
Postscaler
WDTPS2
Time-out
WDT
Bit 3
TO
—
8
WDTPS1
Bit 2
PD
—
WDTPS2:WDTPS0
PIC18FXX8
WDTPS0
Bit 1
POR
—
DS41159D-page 273
SWDTEN
WDTEN
Bit 0
BOR