3069RF-ZTAT Datasheet, PDF (333/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Section 9 16-Bit Timer
9.1 Overview
The H8/3069R has built-in 16-bit timer module with three 16-bit counter channels.
9.1.1 Features
16-bit timer features are listed below.
• Capability to process up to 6 pulse outputs or 6 pulse inputs
• Six general registers (GRs, two per channel) with independently-assignable output compare or
input capture functions
• Selection of eight counter clock sources for each channel:
Internal clocks: φ, φ/2, φ/4, φ/8
External clocks: TCLKA, TCLKB, TCLKC, TCLKD
• Five operating modes selectable in all channels:
 Waveform output by compare match
Selection of 0 output, 1 output, or toggle output (only 0 or 1 output in channel 2)
 Input capture function
Rising edge, falling edge, or both edges (selectable)
 Counter clearing function
Counters can be cleared by compare match or input capture.
 Synchronization
Two or more timer counters (16TCNTs) can be preset simultaneously, or cleared
simultaneously by compare match or input capture. Counter synchronization enables
synchronous register input and output.
 PWM mode
PWM output can be provided with an arbitrary duty cycle. With synchronization, up to
three-phase PWM output is possible.
• Phase counting mode selectable in channel 2
Two-phase encoder output can be counted automatically.
• High-speed access via internal 16-bit bus
The 16TCNTs and GRs can be accessed at high speed via a 16-bit bus.
• Any initial timer output value can be set
• Nine interrupt sources
Each channel has two compare match/input capture interrupts and an overflow interrupt. All
interrupts can be requested independently.
Rev. 5.0, 09/04, page 311 of 978