hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 323

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

9.5
9.5.1
Timer G is an 8-bit timer with dedicated input capture functions for the rising/falling edges of
pulses input from the input capture input pin (input capture input signal). High-frequency
component noise in the input capture input signal can be eliminated by a noise canceler, enabling
accurate measurement of the input capture input signal duty cycle. If input capture input is not set,
timer G functions as an 8-bit interval timer.
Features
Features of timer G are given below.
• Choice of four internal clock sources (φ/64, φ/32, φ/2, φw/4)
• Dedicated input capture functions for rising and falling edges
• Level detection at counter overflow
• Selection of whether or not the counter value is to be cleared at the input capture input signal
• Two interrupt sources: one input capture, one overflow. The input capture input signal rising
• A built-in noise canceler eliminates high-frequency component noise in the input capture input
• Watch mode, subactive mode, or subsleep mode operation is possible when φw/4 is selected as
• Use of module standby mode enables this module to be placed in standby mode independently
It is possible to detect whether overflow occurred when the input capture input signal was high
or when it was low.
rising edge, falling edge, or both edges
or falling edge can be selected as the interrupt source.
signal.
the internal clock.
when not used.
Timer G
Overview
Rev. 7.00 Mar 10, 2005 page 281 of 652
REJ09B0042-0700
Section 9 Timers