HD6473847RHV Datasheet, PDF (337/546 Pages) Renesas Technology Corp – Renesas 8-Bit Single-Chip Microcomputer H8 Family / H8/300L Super Low Power Series

Section 11 10-Bit PWM
Section 11 10-Bit PWM
This LSI has a two-channel 10-bit PWM. The PWM with a low-path filter connected can be used
as a D/A converter. Figure 11.1(1) shows a block diagram of the 10-bit PWM of the H8/3802
Group, H8/38004 Group and H8/38002S Group. Figure 11.1(2) shows a block diagram of the 10-
bit PWM of the H8/38104 Group.
11.1 Features
• Choice of four conversion periods
A conversion period of 4096/φ with a minimum modulation width of 4/φ, a conversion period
of 2048/φ with a minimum modulation width of 2/φ, a conversion period of 1024/φ with a
minimum modulation width of 1/φ, or a conversion period of 512/φ with a minimum
modulation width of 1/2φ can be selected.
• Pulse division method for less ripple
• Use of module standby mode enables this module to be placed in standby mode independently
when not used. (For details, refer to section 5.4, Module Standby Function.)
• On the H8/38104 Group it is possible to select between two types of PWM output: pulse-
division 10-bit PWM and event counter PWM (PWM incorporating AEC). (The H8/3802
Group, H8/38004 Group and H8/38002S Group can only produce 10-bit PWM output.) Refer
to section 9.4, Asynchronous Event Counter (AEC), for information on event counter PWM.
PWM1000A_000020020900
Rev. 7.00 Mar. 08, 2010 Page 305 of 510
REJ09B0024-0700