PIC16C72-10I/SS 查看數據表（PDF） - Microchip Technology

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PIC16C72-10I/SS

8-Bit CMOS Microcontrollers with A/D Converter

Microchip Technology 

PIC16C7X

FIGURE 9-2: T2CON: TIMER2 CONTROL REGISTER (ADDRESS 12h)

U-0

—

bit7

bit 7:

bit 6-3:

bit 2:

bit 1-0:

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

bit0

Unimplemented: Read as '0'

TOUTPS3:TOUTPS0: Timer2 Output Postscale Select bits

0000 = 1:1 Postscale

0001 = 1:2 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

R = Readable bit

W = Writable bit

U = Unimplemented bit,

read as ‘0’

- n = Value at POR reset

TABLE 9-1: 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

PEIE

T0IE

INTE

RBIE

T0IF

INTF

RBIF 0000 000x 0000 000u

0Ch

PIR1

PSPIF(1,2) ADIF

RCIF(2)

TXIF(2)

SSPIF CCP1IF TMR2IF TMR1IF 0000 0000 0000 0000

8Ch

PIE1

PSPIE(1,2) ADIE

RCIE(2) TXIE(2) SSPIE CCP1IE TMR2IE TMR1IE 0000 0000 0000 0000

11h

TMR2 Timer2 module’s 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 PIC16C73/73A/76, always maintain these bits clear.

2: The PIC16C72 does not have a Parallel Slave Port or a USART, these bits are unimplemented, read as '0'.

DS30390E-page 70

© 1997 Microchip Technology Inc.

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