Datasheet

PIC16F630/676

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

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TMR1GE T1CKPS1 T1CKPS0 T1OSCEN T1SYNC

TMR1CS TMR1ON

bit 7 bit 0

bit 7 Unimplemented: Read as ‘0’

bit 6 TMR1GE: Timer1 Gate Enable bit

If TMR1ON = 0:

This bit is ignored

If TMR1ON = 1:

1 = Timer1 is on if T1G pin is low

0 = Timer1 is on

bit 5-4 T1CKPS1:T1CKPS0: Timer1 Input Clock Prescale Select bits

11 = 1:8 Prescale Value

10 = 1:4 Prescale Value

01 = 1:2 Prescale Value

00 = 1:1 Prescale Value

bit 3 T1OSCEN: LP Oscillator Enable Control bit

If INTOSC without CLKOUT oscillator is active:

1 = LP oscillator is enabled for Timer1 clock

0 = LP oscillator is off

Else:

This bit is ignored

bit 2 T1SYNC: Timer1 External Clock Input Synchronization Control bit

TMR1CS = 1:

1 = Do not synchronize external clock input

0 = Synchronize external clock input

TMR1CS = 0:

This bit is ignored. Timer1 uses the internal clock.

bit 1 TMR1CS: Timer1 Clock Source Select bit

1 = External clock from T1OSO/T1CKI pin (on the rising edge)

0 = Internal clock (FOSC/4)

bit 0 TMR1ON: Timer1 On bit

1 = Enables Timer1

0 = Stops Timer1

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