PIC12F519-ESLASHMS datasheet(34/96 Pages) MICROCHIP

34 / 96 page

PIC12F519

DS41319B-page 32

FIGURE 7-3:

TIMER0 TIMING: INTERNAL CLOCK/PRESCALE 1:2

TABLE 7-1:

REGISTERS ASSOCIATED WITH TIMER0

Add

res

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on

Power-on

Reset

Value on

All Other

Resets

01h

TMR0

Timer0 – 8-bit Real-Time Clock/Counter

xxxx xxxx

uuuu uuuu

N/A

OPTION

GPWU GPPU

T0CS

T0SE

PSA

PS2

PS1

PS0

1111 1111

N/A

TRISGPIO

—

TRISGPIO5 TRISGPIO4 TRISGPIO3 TRISGPIO2 TRISGPIO1 TRISGPIO0 --11 1111 --11 1111

Legend:

x = unknown, u = unchanged, – = unimplemented, read as ‘0’, Shaded cells = unimplemented, read as ‘0’

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

Instruction

Fetch

Timer0

PC + 1

PC + 2

PC + 3

PC + 4

PC + 6

T0 + 1

NT0

NT0 + 1

MOVWF TMR0

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 + 1

Read TMR0

reads NT0 + 2

Instruction

Executed

PC + 5

(Program

Counter)

PIC12F519-E/MS Datasheet(PDF) 34 Page - Microchip Technology

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