M16C6K9 Datasheet, PDF (145/292 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

M16C/6K9 Group
PWM
PWM Output Circuit (PWM : Pulse Width Modulation)
There are 6 PWM output circuits, PWM0 to PWM5, with 8-bit resolution and operating independently. The
input clock f(PC) for PWM is based on XIN, 2 division of XIN or 4 division of XIN.
Data bus
PWM0 prescaler pre-latch PWM0 register pre-latch
Transmission control circuit
f(XIN)
Count source
"00" ^{selection bits}
1/2 ^"01"
1/4 ^"10"
f(PC)
PWM0 prescaler latch PWM0 register latch
PWM0 prescaler
PWM0 register
PWM0
P44 latch
PWM0 output pin selection bit
PWM0 output enable bit
P44 direction register
P93 latch
Note: Refer to page 24 for the addresses of PWM prescaler and PWM register.
PWM0 output pin selection bit
PWM0 output enable bit
P93 direction register
P44/PWM01
P93/DA1/PWM00
Fig.LA-1 PWM circuit (PWM0)
Rev.1.00 Jun 06, 2003 page 145 of 290