Microchip Technology MCP1630DM-DDBS1 Data Sheet
©
2007 Microchip Technology Inc.
DS41211D-page 47
PIC12F683
6.11
Timer1 Control Register
The Timer1 Control register (T1CON), shown in
Register 6-1, is used to control Timer1 and select the
various features of the Timer1 module.
Register 6-1, is used to control Timer1 and select the
various features of the Timer1 module.
REGISTER 6-1:
T1CON: TIMER1 CONTROL REGISTER
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
T1GINV
(1)
TMR1GE
(2)
T1CKPS1
T1CKPS0
T1OSCEN
T1SYNC
TMR1CS
TMR1ON
bit 7
bit 0
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
bit 7
T1GINV: Timer1 Gate Invert bit
(1)
1
= Timer1 gate is active-high (Timer1 counts when gate is high)
0
= Timer1 gate is active-low (Timer1 counts when gate is low)
bit 6
TMR1GE: Timer1 Gate Enable bit
(2)
If TMR1ON =
0
:
This bit is ignored
If TMR1ON =
If TMR1ON =
1
:
1
= Timer1 is on if Timer1 gate is not active
0
= Timer1 is on
bit 5-4
T1CKPS<1:0>: 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: 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. LP oscillator is disabled.
This bit is ignored. LP oscillator is disabled.
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 T1CKI pin (on the rising edge)
0
= Internal clock (F
OSC
/4)
bit 0
TMR1ON: Timer1 On bit
1
= Enables Timer1
0
= Stops Timer1
Note 1:
T1GINV bit inverts the Timer1 gate logic, regardless of source.
2:
TMR1GE bit must be set to use either T1G pin or COUT, as selected by the T1GSS bit of the CMCON1
register, as a Timer1 gate source.
register, as a Timer1 gate source.