Two 8-Bit Timers Mode (Timer C And D) - Samsung S3F84B8 User Manual

S3F84B8_UM_REV 1.00

12.2 TWO 8-BIT TIMERS MODE (TIMER C AND D)

12.2.1 OVERVIEW OF TWO 8-BIT TIMERS MODE (TIMER C AND D)
Timers C and D are 8-bit general-purpose timers. Timer C works in the interval timer mode, while Timer D works
in the interval timer and PWM modes by using the appropriate TCCON and TDCON setting, respectively.
Timers C and D have the following functional components:

Prescaler for Timer C clock frequency programmable from fx to fx/4096
Prescaler for Timer D clock frequency programmable from fx to fx/4096

8-bit counter (TCCNT and TDCNT), 8-bit comparator, and 8-bit reference data register (TCDATA and
TDDATA)

Timer C match interrupt generation

Timer C control register, TCCON (E5H, bank1, read/write)

Timer D has an I/O pin for match and PWM output (P2.0, TDOUT)

Timer D overflow interrupt generation

Timer D match interrupt generation

Timer D control register, TDCON (E9H, bank1, read/write)
12.2.2 TIMER C AND D CONTROL REGISTER (TCCON, TDCON)
You can use the Timers C and D control registers, TCCON and TDCON, for the following purposes:

Enable the Timer C (interval timer mode) and Timer D operation (interval timer mode and PWM mode).

Select the Timer C clock source.

Clear the Timers C and D counter, TCCNT and TDCNT.

Enable the Timers C and D interrupt.

Clear the Timers C and D interrupt pending conditions.
You can use Timer C prescaler register, TCPS, for the following purposes:

Select the clock source. Comparator 0's output can be configured to the clock source of Timer C.

Select the clock prescaler.

You can use Timer D prescaler register, TDPS, for the following purpose:

Program clock prescaler
12-5
12 TIMER 0