PIC16F54T-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F54T-I/SO

Flash-Based, 8-Bit CMOS Microcontroller Series

Microchip Technology 

PIC16F5X

FIGURE 7-3:

TIMER0 TIMING: INTERNAL CLOCK/PRESCALER 1:2

PC

Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4

(Program

Counter)

PC - 1

PC

PC + 1

PC + 2

PC + 3

PC + 4

PC + 5

PC + 6

Instruction

Fetch

MOVWF TMR0 MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W

Timer0

T0

T0 + 1

NT0

NT0 + 1

Instruction

Execute

Write TMR0

executed

Read TMR0

reads NT0

Read TMR0

reads NT0

Read TMR0

reads NT0

Read TMR0 Read TMR0

reads NT0 reads NT0 + 1

TABLE 7-1: REGISTERS ASSOCIATED WITH TIMER0

Address Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on Value on

Power-on MCLR and

Reset WDT Reset

01h

TMR0 Timer0 - 8-bit real-time clock/counter

xxxx xxxx uuuu uuuu

N/A

OPTION —

— T0CS T0SE PSA PS2 PS1 PS0 --11 1111 --11 1111

Legend: Shaded cells not used by Timer0, - = unimplemented, x = unknown, u = unchanged.

DS41213D-page 34

© 2007 Microchip Technology Inc.

Share Link: