r8a66170dd Renesas Electronics Corporation., r8a66170dd Datasheet - Page 10

• Manufacturer Part Number: r8a66170dd
• Description: 4-ch 16-bit Pwm Generator
• Manufacturer: Renesas Electronics Corporation.

R8A66170DD/SP
Initial state
In the case of command 1, if the D1 is set as “external trigger ON” it does not output a pulse to PWM output and its
status is held in the high impedance even if the operation of internal circuit is started by specifying enable condition
with command 3.
In this case the pulse can be output to PWM output by entering H level into TRG input in Mode 0,Mode 2 or entering H
pulse into TRG input in Mode1. (See Fig.8)
In Mode 0 or Mode 2, putting TRG input to L level during PWM is outputting pulse makes PWM output keeps its state.
When TRG input is put back to H level, the operation are resumed from that point.
REJ03F0272-0100 Rev.1.00 Apr.01.2008
Page 10 of 20
Fig.8 (When H width polarity is “H”)
Internal signal
Prescaler output
(PWM clock)
External trigger off
PWM output
External trigger on
TRG
PWM output
Oscillator source
D0～D7
C / D
CS
WR
"Z"
"Z"
Enable
Command 3
(L=1, M=3)