MITSUBISHI MICROCOMPUTERS
M37274EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
PWM Mode Register 1
b7b6 b5b4b3 b2b1b0
PWM mode register 1 (PN) [Address 020A16]
B
0
Name
Functions
After reset
R W
R W
PWM counts source
selection bit (PN0)
0 : Count source supply
1 : Count source stop
0
DA/P03 output
selection bit (PN1)
0 : P03 output
1 : DA output
1
2
3
0
R W
R W
R W
DA output polarity
selection bit (PN2)
0 : Positive polarity
1 : Negative polarity
0
PWM output polarity
selection bit (PN3)
0 : Positive polarity
1 : Negative polarity
0
4
to
7
Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are “0.”
Indeterminate
R
—
Fig. 25. PWM Mode Register 1
PWM Mode Register 2
b7b6 b5b4b3 b2b1b0
0
PWM mode register 2 (PW) [Address 020B16]
B
0
Name
/PWM0 output
Functions
output
1 : PWM0 output
0 : P0 output
1 : PWM1 output
After reset R W
0 : P0
4
P0
4
0
R W
selection bit (PW0)
P0 /PWM1 output
selection bit (PW1)
P0 /PWM2 output
selection bit (PW2)
P0 /PWM3 output
selection bit (PW3)
1
2
3
4
5
6
7
5
5
0
0
0
R W
R W
R W
6
0 : P06 output
1 : PWM2 output
7
0 : P0 output
7
1 : PWM3 output
P0 /PWM4 output
selection bit (PW4)
0
0
R W
0 : P0 output
0
1 : PWM4 output
P0 /PWM5 output
selection bit (PW5)
1
0
0
R W
R W
0: P0 output
1
1: PWM5 output
P0 /PWM6 output
selection bit (PW6)
2
0: P0 output
2
1: PWM6 output
Fix this bit to “0.”
0
R W
Fig. 26. PWM Mode Register 2
32
RENESAS [ RENESAS TECHNOLOGY CORP ]
