PIC18C801-I/PT Microchip Technology, PIC18C801-I/PT Datasheet - Page 211

• Manufacturer Part Number: PIC18C801-I/PT
• Description: IC PIC MCU ROMLESS 80TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Cr

Specifications of PIC18C801-I/PT

• Core Size: 8-Bit
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Core Processor: PIC
• Speed: 25MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Number Of I /o: 37
• Program Memory Type: ROMless
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TFQFP
• Controller Family/series: PIC18
• No. Of I/o's: 67
• Ram Memory Size: 1.5KB
• Cpu Speed: 6.25MIPS
• No. Of Timers: 4
• Program Memory Size: EXT
• Processor Series: PIC18C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1.5 KB
• Interface Type: 3-Wire, I2C, SPI, USART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 47
• Number Of Timers: 1 x 16 bit
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: DV164005, ICE4000, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: PIC18C801I/PT

19.2.2
The WDT has a postscaler that can extend the WDT
Reset period. The postscaler may be programmed by
the user software or is selected by configuration bits
WDTPS<2:0> in the CONFIG2H register. If the device
has the Watchdog Timer enabled by configuration bits,
FIGURE 19-1:
TABLE 19-2:
CONFIG2H
RCON
WDTCON
Legend: Shaded cells are not used by the Watchdog Timer.
2001 Microchip Technology Inc.
Name
Note: WDPS2:WDPS0 are bits in a configuration register.
WDT POSTSCALER
SUMMARY OF WATCHDOG TIMER REGISTERS
IPEN
Bit 7
—
—
Watchdog Timer Block Diagram
WDT Timer
Bit 6
—
—
SWDTEN bit
r
Advance Information
Bit 5
—
—
—
Bit 4
—
RI
—
the device will use predefined set postscaler value. If
the device has the Watchdog Timer disabled by config-
uration bits, user software can set desired postscaler
value. When the device has the Watchdog Timer
enabled by configuration bits, by default, Watchdog
postscaler of 1:128 is selected.
SWDPS2
WDTPS2
8 - to - 1 MUX
Postscaler
Bit 3
Time-out
TO
WDT
8
PIC18C601/801
SWDPS1
WDTPS1
Bit 2
PD
WDTPS2:WDTPS0
WDTPS0
SWDPS0
Bit 1
POR
DS39541A-page 211
SWDTEN
WDTEN
Bit 0
r