PIC17C42 Microchip Technology, PIC17C42 Datasheet - Page 104

• Manufacturer Part Number: PIC17C42
• Description: High-Performance 8-Bit CMOS EPROM/ROM Microcontroller
• Manufacturer: Microchip Technology

PIC17C4X
FIGURE 14-8: WATCHDOG TIMER BLOCK DIAGRAM
TABLE 14-4:
DS30412C-page 104
Address
06h, Unbanked CPUSTA
Legend: - = unimplemented read as '0', q - value depends on condition, shaded cells are not used by the WDT.
Note 1: Other (non power-up) resets include: external reset through MCLR and Watchdog Timer Reset.
Note 1: This oscillator is separate from the external
—
2: This value will be as the device was programmed, or if unprogrammed, will read as all '1's.
RC oscillator on the OSC1 pin.
On-chip RC
Oscillator
Name
Config
REGISTERS/BITS ASSOCIATED WITH THE WATCHDOG TIMER
(1)
Bit 7
—
—
WDT Enable
WDT
Bit 6
PM1
—
STKAV
Bit 5
—
GLINTD
Bit 4
PM0
WDTPS1 WDTPS0
Bit 3
TO
Bit 2
PD
4 - to - 1 MUX
WDT Overflow
Postscaler
FOSC1
Bit 1
—
FOSC0
Bit 0
—
1996 Microchip Technology Inc.
WDTPS1:WDTPS0
--11 11--
Power-on
Value on
(Note 2)
Reset
other resets
Value on all
--11 qq--
(Note1)
(Note 2)