T1CON – TIMER1 CONTROL REGISTER

T1CON – TIMER1 CONTROL REGISTER (ADDRESS: 10h).

bit 7	Unimplemented: Read as ‘0’
bit 6	Unimplemented: Read as ‘0’
bit 5	T1CKPS<1>: Timer1 Input Clock Prescale Select bits
bit 4	T1CKPS<0>: 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: Timer1 Oscillator Enable Control bit	1 = Oscillator is enabled 0 = Oscillator is shut off The oscillator inverter and feedback resistor are turned off to eliminate power drain.
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 when TMR1CS = 0.
bit 1	TMR1CS: Timer1 Clock Source Select bit	1 = External clock from pin RB6/T1OSO/T1CKI/PGC (on the rising edge) 0 = Internal clock (FOSC/4)
bit 0	TMR1ON: Timer1 On bit	1 = Enables Timer1 0 = Stops Timer1