DVP-ES2/EX2/EC5/SS2/SA2/SX2/SE&TP Operation Manual - Programming
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API
Mnemonic Operands Function
73 SEGD P
7-segment decoder
Type
OP
Bit Devices Word devices Program Steps
X Y M S K H KnX
KnY
KnM
KnS
T C D E F
SEGD, SEGDP: 5 steps
SS2
SX2
SS2
SX2
SS2
SX2
Operands:
S: Source device for decoding D: Output device after decoding
Explanations:
The instruction decodes the lower 4 bits (Hex data: 0 to 9, A to F) of source device S and stores the
decoded data in lower 8 bits of D so as to form a 7-segment display.
Program Example:
When X20 = ON, the content of the lower 4 bits (b0~b3) of
D10 will be decoded into the 7-segment display. . The
decoded results will be stored in Y20~Y27. If the source
data exceeds 4bits, still only lower 4 bits will be decoded.
Decoding table of the 7-segment display:
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F 1111
1110
1101
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
ON
OFFON ON ON ON ON
OFFOFFOFFOFF OFF
ON ON
ON ON ON ON
OFF
OFF
ON
ON ON ON ON ON
OFF
OFF
OFFOFF OFF
ON ON ON ON
ON
OFF
ON ON OFF
ON ON
OFF ON ON ON
ON ON
ON ON ON
OFFOFF OFF
ON ON ON ON ON
ON ON
ON ON ON ON
ON ON
OFF
ON
ON
OFF OFF ON ON
ON
OFF ONON
ON
OFF ON
OFF OFF
ON
ON
ON ON
OFF OFF
OFF
a
c
b
d
g
ON
ON
ONON
ON
ON
OFF
ON ON
ON
OFF
ON OFF
OFF
ON ON ON
ON
ON ON
ON
ON
Hex
Bit
combi-
nation
Composition
of the 7-
segment display
Status of each segment
Data
displayed