PIC16F87-E/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F87-E/SO

18/20/28-Pin Enhanced Flash MCUs with nanoWatt Technology

Microchip Technology 

PIC16F87/88

REGISTER 8-1:

T2CON: TIMER2 CONTROL REGISTER (ADDRESS 12h)

U-0

R/W-0

R/W-0

R/W-0

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

— TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0

bit 7

bit 0

bit 7

bit 6-3

bit 2

bit 1-0

Unimplemented: Read as ‘0’

TOUTPS<3:0>: 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

T2CKPS<1:0>: 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

W = Writable bit

‘1’ = Bit is set

U = Unimplemented bit, read as ‘0’

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

TABLE 8-1: 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

—

8Ch

PIE1

—

PEIE

ADIF(1)

ADIE(1)

TMR0IE

RCIF

RCIE

INT0IE

TXIF

TXIE

RBIE TMR0IF INT0IF RBIF 0000 000x 0000 000u

SSPIF CCP1IF TMR2IF TMR1IF -000 0000 -000 0000

SSPIE CCP1IE TMR2IE TMR1IE -000 0000 -000 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: This bit is only implemented on the PIC16F88. The bit will read ‘0’ on the PIC16F87.

DS30487D-page 80

 2002-2013 Microchip Technology Inc.

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