
10
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37281MAH–XXXSP,M37281MFH–XXXSP
M37281MKH–XXXSP,M37281EKSP
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
N-channel open-drain output
Ports P45, P46
Note : Each pin is also used
as follows :
P45 : SOUT
P46 : SCLK
CMOS output
Port P55
Note : Port P55 is also used
as pin OUT1.
Schmidt input
HSYNC, VSYNC
Fig. 7.2 I/O Pin Block Diagram (2)
H
SYNC
, V
SYNC
S
OUT
, S
CLK
Port P5
5
Data bus
Direction register
Internal circui
Data bus
Ports P4
0
–P4
4
Internal circui
Internal circuit
Ports P5
2
–P5
4
Output
Ports P52–P54
Note : Each port is also used as follows :
P52 : R/R1
P53 : G/G1
P54 : B/B1
Input
Ports P40–P44
Note : Each port is also used as follows :
P40 : AD4
P41 : INT2
P42 : TIM2
P43 : TIM3
P44 : INT1
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