PIC18F2331_10 Datasheet, PDF (128/392 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D

PIC18F2331/2431/4331/4431
FIGURE 12-1:
TIMER0 BLOCK DIAGRAM (8-BIT MODE)
FOSC/4
0
T0CKI pin
T0SE
1
Sync with
1
Internal
Programmable 0
Clocks
Prescaler
(2 TCY Delay)
T0CS
3
T0PS<2:0>
PSA
TMR0L
8
8
Note: Upon Reset, Timer0 is enabled in 8-bit mode with clock input from T0CKI max. prescale.
Set
TMR0IF
on Overflow
Internal Data Bus
FIGURE 12-2:
TIMER0 BLOCK DIAGRAM (16-BIT MODE)
FOSC/4
0
T0CKI pin
T0SE
1
Sync with
1
Internal
Programmable ₀
Clocks
Prescaler
(2 TCY Delay)
T0CS
3
T0PS<2:0>
PSA
TMR0L
8
TMR0
High Byte
8
Set
TMR0IF
on Overflow
8
TMR0H
Read TMR0L
Write TMR0L
8
Note: Upon Reset, Timer0 is enabled in 8-bit mode with clock input from T0CKI max. prescale.
8
Internal Data Bus
DS39616D-page 128
 2010 Microchip Technology Inc.