12F629 Microchip Technology, Inc., 12F629 Datasheet - Page 34

• Manufacturer Part Number: 12F629
• Description: 8-pin Flash-based 8-bit CMOS Microcontrollers
• Manufacturer: Microchip Technology, Inc.

PIC12F629/675
REGISTER 5-1:
DS41190C-page 32
bit 7
bit 6
bit 5-4
bit 3
bit 2
bit 1
bit 0
T1CON — TIMER1 CONTROL REGISTER (ADDRESS: 10h)
Unimplemented: Read as ‘0’
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
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
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
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.
TMR1CS: Timer1 Clock Source Select bit
1 = External clock from T1OSO/T1CKI pin (on the rising edge)
0 = Internal clock (F
TMR1ON: Timer1 On bit
1 = Enables Timer1
0 = Stops Timer1
bit 7
Legend:
R = Readable bit
- n = Value at POR
U-0
—
TMR1GE T1CKPS1 T1CKPS0 T1OSCEN
R/W-0
OSC
/4)
R/W-0
W = Writable bit
’1’ = Bit is set
R/W-0
R/W-0
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
T1SYNC
R/W-0
 2003 Microchip Technology Inc.
TMR1CS
x = Bit is unknown
R/W-0
TMR1ON
R/W-0
bit 0