PIC16F77T-ISS データシートの表示（PDF） - Microchip Technology

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PIC16F77T-ISS

28/40-pin, 8-bit CMOS FLASH Microcontrollers

Microchip Technology 

PIC16F7X

REGISTER 7-1:

T2CON: TIMER2 CONTROL REGISTER (ADDRESS 12h)

U-0

—

bit 7

R/W-0

R/W-0

TOUTPS3 TOUTPS2

R/W-0

TOUTPS1

R/W-0 R/W-0 R/W-0 R/W-0

TOUTPS0 TMR2ON T2CKPS1 T2CKPS0

bit 0

bit 7

bit 6-3

bit 2

bit 1-0

Unimplemented: Read as ‘0’

TOUTPS3:TOUTPS0: Timer2 Output Postscale Select bits

0000 = 1:1 Postscale

0001 = 1:2 Postscale

0010 = 1:3 Postscale

•

•

•

1111 = 1:16 Postscale

TMR2ON: Timer2 On bit

1 = Timer2 is on

0 = Timer2 is off

T2CKPS1:T2CKPS0: Timer2 Clock Prescale Select bits

00 = Prescaler is 1

01 = Prescaler is 4

1x = Prescaler is 16

Legend:

R = Readable bit

- n = Value at POR reset

W = Writable bit

’1’ = Bit is set

U = Unimplemented bit, read as ‘0’

’0’ = Bit is cleared x = Bit is unknown

TABLE 7-1: REGISTERS ASSOCIATED WITH TIMER2 AS A TIMER/COUNTER

Address Name Bit 7 Bit 6

Bit 5

Bit 4

Bit 3

Bit 2 Bit 1

Bit 0

Value on:

POR,

BOR

Value on

all other

RESETS

0Bh,8Bh, INTCON GIE

10Bh, 18Bh

0Ch

PIR1 PSPIF(1)

8Ch

PIE1 PSPIE(1)

PEIE

ADIF

ADIE

TMR0IE

RCIF

RCIE

INTE

TXIF

TXIE

RBIE TMR0IF INTF

RBIF 0000 000x 0000 000u

SSPIF CCP1IF TMR2IF TMR1IF 0000 0000 0000 0000

SSPIE CCP1IE TMR2IE TMR1IE 0000 0000 0000 0000

11h

TMR2 Timer2 Module Register

0000 0000 0000 0000

12h

T2CON — TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0 -000 0000 -000 0000

92h

PR2 Timer2 Period Register

1111 1111 1111 1111

Legend: x = unknown, u = unchanged, - = unimplemented, read as '0'. Shaded cells are not used by the Timer2 module.

Note 1: Bits PSPIE and PSPIF are reserved on the PIC16F73/76; always maintain these bits clear.

DS30325B-page 52

 2002 Microchip Technology Inc.

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