16F628 datasheet(55/168 Pages) MICROCHIP

55 / 168 page

 2002 Microchip Technology Inc.

Preliminary

DS40044A-page 53

PIC16F627A/628A/648A

T2CON: TIMER2 CONTROL REGISTER (ADDRESS: 12h)

TABLE 8-1:

REGISTERS ASSOCIATED WITH TIMER2 AS A TIMER/COUNTER

U-0

R/W-0

—

TOUTPS3

TOUTPS2 TOUTPS1

TOUTPS0

TMR2ON T2CKPS1 T2CKPS0

bit 7

bit 0

bit 7

Unimplemented: Read as '0'

bit 6-3

TOUTPS3:TOUTPS0: Timer2 Output Postscale Select bits

0000 = 1:1 Postscale Value

0001 = 1:2 Postscale Value

•

1111 = 1:16 Postscale

bit 2

TMR2ON: Timer2 On bit

1 = Timer2 is on

0 = Timer2 is off

bit 1-0

T2CKPS1:T2CKPS0: Timer2 Clock Prescale Select bits

00 = 1:1 Prescaler Value

01 = 1:4 Prescaler Value

1x = 1:16 Prescaler Value

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

’1’ = Bit is set

’0’ = Bit is cleared

x = Bit is unknown

Address Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on

POR

Value on

all other

RESETS

0Bh, 8Bh,

10Bh, 18Bh

INTCON

GIE

PEIE

T0IE

INTE

RBIE

T0IF

INTF

RBIF

0000 000x

0000 000u

0Ch

PIR1

EEIF

CMIF

RCIF

TXIF

—

CCP1IF

TMR2IF

TMR1IF

0000 -000

8Ch

PIE1

EEIE

CMIE

RCIE

TXIE

—

CCP1IE

TMR2IE

TMR1IE

0000 -000

11h

TMR2

Timer2 module’s register

0000 0000

12h

T2CON

—

TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON

T2CKPS1

T2CKPS0

-000 0000

92h

PR2

Timer2 Period Register

1111 1111

Legend:

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

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