PIC16C781 datasheet(58/186 Pages) MICROCHIP

58 / 186 page

PIC16C781/782

DS41171A-page 56

Preliminary

 2001 Microchip Technology Inc.

6.2

Control Register T1CON

Control and configuration of Timer1 is by means of the

T1CON register shown in Register 6-1.

Timer1 is enabled by setting the TMR1ON bit

(T1CON<0>). Clearing TMR1ON stops the timer, but

does not clear the Timer1 register.

The TMR1CS bit (T1CON<1>) determines the Timer

mode. When TMR1CS is set, the timer is configured as

a counter and receives its clock from RA6/OSC2/

CLKOUT/T1CKI. When cleared, the timer is configured

as a timer and its clock is derived from FOSC/4.

The T1SYNC bit (T1CON<2>) determines Timer1’s syn-

chronization. If cleared, the timer clock is synchronized

to the system clock. If set, the timer is asynchronous.

The Timer1 clock gate function is enabled by setting

the TMR1GE bit (T1CON<6>). When TMR1GE is set,

the T1G input will control the clock input to the timer/

counter. A low on the T1G input will cause Timer1 to

increment at the clock rate, a high will hold the timer at

its present value.

The T1OSCEN bit (T1CON<3>) enables the LP oscil-

lator as a clock source for Timer1. This mode is a

replacement for the regular external oscillator.

T1CKPS<1:0> determines the prescaler value for the

timer. Available prescaler values are:

T1CKPS<1:0>

Prescaler Value

Bit 1

Bit 0

1:8

1:4

1:2

1:1

Note:

To use the LP oscillator as the Timer1

oscillator:

1. TMR1CS must be set.

2. T1OSCEN must be set.

3. The Configuration Word must select

INTRC w/o CLKOUT.

PIC16C781 Datasheet(PDF) 58 Page - Microchip Technology

PIC16C781 Datasheet(HTML) 58 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL