PIC16F57 datasheet(36/90 Pages) MICROCHIP

Part #	PIC16F57

Description	Flash-Based, 8-Bit CMOS Microcontroller Series

PDF	90 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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36 / 90 page

PIC16F5X

DS41213C-page 34

 2004 Microchip Technology Inc.

FIGURE 7-3:

TIMER0 TIMING: INTERNAL CLOCK/PRESCALER 1:2

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

Power-on

Reset

Value on

MCLR and

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.

PC - 1

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)

Instruction

Fetch

Timer0

PC + 1

PC + 2

PC + 3

PC + 4

PC + 5

PC + 6

NT0 + 1

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

Write TMR0

executed

Read TMR0

reads NT0

Read TMR0

reads NT0

Read TMR0

reads NT0

Read TMR0

reads NT0

Read TMR0

reads NT0 + 1

T0 + 1

NT0

Instruction

Execute

PIC16F57 Datasheet(PDF) 36 Page - Microchip Technology

PIC16F57 Datasheet(HTML) 36 Page - Microchip Technology

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