
MITSUBISHI MICROCOMPUTERS
M37271MF-XXXSP
M37271EF-XXXSP, M37271EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
80
N-channel open-drain output
Ports SOUT, SCLK
Note : Each pin is also used
as below :
SOUT : P45
SCLK : P46
R, G, B, OUT1
Note : Each pin is also used
as below :
R : P52 B : P54
G : P53 OUT1 : P55
CMOS output
HSYNC, VSYNC
Schmidt input
Fig. 92. I/O pin block diagram (2)
Ports P40–P44
Note : Each port is also used as below :
P40 : AD4
P41 : INT2
P42 : TIM2
P43 : TIM3
P44 : INT1
H
SYNC
, V
SYNC
S
OUT
, S
CLK
R, G, B, OUT1
Data bus
Direction register
Internal circuit
Data bus
Ports P4
0
–P4
4
Internal circuit
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