Datasheet

 1997-2013 Microchip Technology Inc. Preliminary DS30453E-page 41
PIC16C5X
FIGURE 8-6: BLOCK DIAGRAM OF THE TIMER0/WDT PRESCALER
T0CKI
T0SE
pin
TCY ( = FOSC/4)
Sync
2
Cycles
TMR0 reg
8-bit Prescaler
8 - to - 1MUX
M
MUX
Watchdog
Timer
PSA
0
1
0
1
WDT
Time-Out
PS<2:0>
8
Note: T0CS, T0SE, PSA, PS<2:0> are bits in the OPTION register.
PSA
WDT Enable bit
0
1
0
1
Data Bus
8
PSA
T0CS
M
U
X
M
U
X
U
X