PIC16C620 Microchip Technology, PIC16C620 Datasheet - Page 58

• Manufacturer Part Number: PIC16C620
• Description: EPROM-Based 8-Bit CMOS Microcontroller
• Manufacturer: Microchip Technology

PIC16C62X
FIGURE 9-17: WATCHDOG TIMER BLOCK DIAGRAM
TABLE 9-9:
DS30235G-page 58
Address
2007h
81h
Legend: Shaded cells are not used by the Watchdog Timer.
Note:
Note: T0SE, T0CS, PSA, PS0-PS2 are bits in the OPTION register.
_
+ = Reserved for future use
= Unimplemented location, read as “0”
Name
Config. bits
OPTION
SUMMARY OF WATCHDOG TIMER REGISTERS
Enable Bit
Watchdog
RBPU
Timer
WDT
Bit 7
---
From TMR0 Clock Source
(Figure 6-6)
INTEDG
BOREN
Bit 6
•
Preliminary
0
1
PSA
M
U
X
T0CS
Bit 5
CP1
T0SE
Bit 4
CP0
0
Time-out
MUX
8 - to -1 MUX
WDT
PWRTE
Postscaler
Bit 3
PSA
•
1
8
WDTE
Bit 2
PS2
PSA
To TMR0 (Figure 6-6)
1998 Microchip Technology Inc.
PS<2:0>
FOSC1
Bit 1
PS1
FOSC0
Bit 0
PS0