28
8Bit Single Chip Microcontroller
DMC73C168
7) PORT DATA / DIRECTION REGISTER
PF NAME : ADATA
R/W
: PORT A DATA REGISTER
BIT 7
X
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
X
BIT 1
X
BIT 0
X
P32
READ
PORT A DATA VALUE
>0120
WRITE
RESET VALUE
X
X
X
X
X : INDETERMINATOR
PF NAME : ADDR
: PORT A DIRECTION REGISTER
R/W
READ
WRITE
BIT 7
O
BIT 6
BIT 5
BIT 4
NOT USED
PORT A DIRECTION REGISTER
BIT 3
BIT 2
BIT 1
O
BIT 0
O
P33
>0121
RESET VALUE
O
O
O
O
O
0 : PORT A INPUT MODE
1 : PORT A OUTPUT MODE
PF NAME : BDATA
: SERIAL I/O 1 DATA REGISTER
R/W
READ
WRITE
BIT 7
X
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
X
BIT 1
X
BIT 0
X
P34
PORT B DATA VALUE
>0122
RESET VALUE
X
X
X
X
X : INDETERMINATOR
PF NAME : BDDR
: PORT B DIRECTION REGISTER
R/W
READ
WRITE
BIT 7
O
BIT 6
BIT 5
BIT 4
NOT USED
PORT B DIRECTION REGISTER
BIT 3
BIT 2
BIT 1
O
BIT 0
O
P35
>0123
RESET VALUE
O
O
O
O
O
0 : PORT B INPUT MODE
1 : PORT B OUTPUT MODE
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DAEWOO ELECTRONICS CO., LTD.
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