PIC16C55X
FIGURE 7-6:
BLOCK DIAGRAM OF THE TIMER0/WDT PRESCALER
CLKOUT (=Fosc/4)
Data Bus
T0CKI
pin
T0SE
0M
U
X
1
T0CS
1
M
0
U
X
PSA
SYNC
2
Tcy
8
TMR0 reg
Set flag bit T0IF
on Overflow
Watchdog
Timer
WDT Enable bit
0
M
U
1X
PSA
8-bit Prescaler
8
8-to-1MUX
PS0 - PS2
01
MUX
PSA
WDT
Timeout
Note 1: T0SE, T0CS, PSA, PS0-PS2 are bits in the OPTION register.
DS40143E-page 50
Preliminary
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