HD6433636SW datasheet(197/418 Pages) RENESAS

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9.4

Timer G

9.4.1

Overview

Timer G is an 8-bit timer, with input capture/interval functions for separately capturing the rising

edge and falling edge of pulses input at the input capture pin (input capture input signal). Timer G

has a built-in noise canceller circuit that can eliminate high-frequency noise from the input capture

signal, enabling accurate measurement of its duty cycle. When timer G is not used for input

capture, it functions as an 8-bit interval timer.

Features: Features of timer G are given below.

• Choice of four internal clock sources (ø/64, ø/32, ø/2, ø

W/2)

• Input capture function

Separate input capture functions are provided for the rising and falling edges.

• Counter overflow detection

Can detect whether overflow occurred when the input capture signal was high or low.

• Choice of counter clear

It is possible to select whether or not the counter is cleared at the rising edge, falling edge, or

both edges of the input capture input signal.

• Two interrupt sources

There is one input capture interrupt source and one overflow interrupt source. For input

capture, the rising or falling edge can be selected.

• Built-in noise-canceller circuit

The noise canceller circuit can eliminate high-frequency noise in the input capture signal.

• Operates in subactive and subsleep modes

When ø

W/2 is selected as the internal clock source, timer G can operate in the subactive and

subsleep modes.

HD6433636SW Folha de dados(PDF) 197 Page - Renesas Technology Corp