Renesas PCA7400 Manual de usuario Pagina 24

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MITSUBISHI MICROCOMPUTERS
M37271MF-XXXSP
M37271EF-XXXSP, M37271EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
23
Fig. 15. PWM block diagram
PN
PW
P0
D0
: PWM mode register 1 (address 020A
16
)
: PWM mode register 2 (address 020B
16
)
: Port P0 register (address 00C0
16
)
: Port P0 direction register (address 00C1
16
)
Selection gate :
Connected to
black colored
side at reset.
is as same contents with the others.
PWM1 register (Address 0201
16
)
PWM2 register (Address 0202
16
)
PWM3 register (Address 0203
16
)
PWM4 register (Address 0204
16
)
PWM5 register (Address 0205
16
)
PWM6 register (Address 0206
16
)
1/2
ENABLE
X
IN
PWM timing
generating
circuit
Data bus
PWM0 register
(Address 0200
16
)
b7 b0
8
8-bit PWM circuit
POL
P0
4
PW0
D0
4
PWM0
P0
5
PW1
D0
5
PWM1
P0
6
PW2
D0
6
PWM2
P0
7
PW3
D0
7
PWM3
P0
0
PW4
D0
0
PWM4
P0
1
PW5
D0
1
PWM5
P0
2
PW6
D0
2
PWM6
Inside of
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