r8a66170dd Renesas Electronics Corporation., r8a66170dd Datasheet - Page 4

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

R8A66170DD/SP
REJ03F0272-0100 Rev.1.00 Apr.01.2008
Page 4 of 20
Fig.1 Commands
Enable/numerical
control selection
enabled
Enable/numerical
control selection
enabled
attention
① Mode 0~2
② Mode 1, External trigger on
③ Mode 2
X : Don't care
Command 1
Command 2
Command 3
Mode selection
enabled
"0"
D7
D7
D7
"0"
"1"
PWM number selection
PWM number selection
D6
D6
D6
X
00 : PWM 1
01 : PWM 2
10 : PWM 3
11 : PWM 4
00 : PWM 1
01 : PWM 2
10 : PWM 3
11 : PWM 4
D5
D5
D5
X
M = 0 Prohibition (right after Reset or Disable)
M = 0 Prohibition
M = N = 0 Prohibition
M: H width set value
N: L width set value
numeriacal
control
enabled
Enable/
control
enabled
D4
D4
D4
Mode selection
"0"
"1"
00 : Mode 0
01 : Mode 1
10 : Mode 2
11 : Prohibition
prescaler
numeric
value
PWM
numeric
value
PWM 4
D3
D3
D3
"0"
"1"
"1" is specified
for Mode 0 and 1.
PWM resolution
selection
0 : For L
1 : For H
0 : 8 bit
1 : 16 bit
Effective
only in
Mode 0
width
width
PWM 3
D2
D2
D2
X
"0" : Disable
"1" : Enable
External trigger
0 : For lower
1 : For upper
0 : For lower
1 : For upper
0 : OFF
1 : ON
PWM 2
byte
byte
byte
byte
D1
D1
D1
"H" width
polarity selection
PWM 1
0 : L
1 : H
D0
D0
D0
X
X
Prescaler
value and
PWM counter
value are set
by the unit of
byte after the
second byte.
(See Fig.2)