Datasheet

Section 13 Timer RC
Rev. 1.50 Sep. 18, 2007 Page 217 of 584
REJ09B0240-0150
Section 13 Timer RC
Timer RC is a 16-bit timer having output compare and input capture functions. Timer RC can
count external events and output pulses with a desired duty cycle using the compare match
function between the timer counter and four general registers. Thus, it can be applied to various
systems.
13.1 Features
• Selection of seven counter clock sources
Six internal clocks (φ, φ/2, φ/4, φ/8, φ/32, and φ40M which is a 40-MHz/32-MHz clock derived
from the on-chip oscillator) and an external clock (for counting external events)
• Capability to process up to four pulse outputs or four pulse inputs
• Four general registers
 Can be used as output compare or input capture registers independently
 Can be used as buffer registers for the output compare or input capture registers
• Timer inputs and outputs
 Timer mode
Waveform output by compare match (Selection of 0 output, 1 output, or toggle output)
Input capture function (Rising edge, falling edge, or both edges)
Counter clearing function (Counters can be cleared by compare match)
 PWM mode
Generates up to three-phase PWM output with desired duty cycles.
 PWM2 mode
Generates pulses with a desired period and duty cycle.
• Any initial timer output value can be set
• Five interrupt sources
Four compare match/input capture interrupts and an overflow interrupt.