h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 307
h8s-2138
Manufacturer Part Number
h8s-2138
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2138.pdf
(1061 pages)
- Current page: 307 of 1061
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10.1
The H8S/2138 Group and H8S/2134 Group have an on-chip 14-bit pulse-width modulator (PWM)
with two output channels.
Each channel can be connected to an external low-pass filter to operate as a 14-bit D/A converter.
Both channels share the same counter (DACNT) and control register (DACR).
10.1.1
The features of the 14-bit PWM D/A are listed below.
The pulse is subdivided into multiple base cycles to reduce ripple.
Two resolution settings and two base cycle settings are available
The resolution can be set equal to one or two system clock cycles. The base cycle can be set
equal to T 64 or T
Four operating rates
The two resolution settings and two base cycle settings combine to give a selection of four
operating rates.
Overview
Features
Section 10 14-Bit PWM D/A
256, where T is the resolution.
Rev. 4.00 Jun 06, 2006 page 253 of 1004
Section 10 14-Bit PWM D/A
REJ09B0301-0400
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