212
A S C
S
D
1
2
M
3
○○○
FNC
76
S
X Y M S
D.b R.b
KnX KnY
KnM KnS
T C
D,R
V,Z
UnG
K,H
E
" $"
D
ASC ABCDEFGH D0
X20
42H( B)
44H( D)
46H( F)
48H( H)
41H( A)
43H( C)
45H( E)
47H( G)
D0
D1
D2
D3
b15 b0
D0
D1
D2
D3
D4
D5
D6
D7
00H
00H
00H
00H
00H
00H
00H
00H
41H( A)
42H( B)
43H( C)
44H( D)
45H( E)
46H( F)
47H( G)
48H( H)
b15 b0
S
D
S
○
Operand
Devices
Convert Letters to ASCII Code
Key-in eight English letters from computer
D occupies (the inputted numbers of English letters in S ÷ 2) components
S : the source of English letters will be converted to ASCII codes
D : the device where ASCII codes are stored
Higher 8 bits Lower 8 bits
If M9161= “ON”, each English letter will take a whole register for to store a converted ASCII code, where the lower
8 bits (b7~b0) of the register is to store the ASCII code and higher 8 bits (b15~b8) will all fill with "0".
When X20= “ON”, English letters A ~ H will be converted into ASCII codes and stored in D0 ~ D3.
Higher 8 bits Lower 8 bits
If the English letters contents in is less than 8 characters, the difference is made up with “Space Key” Char
(ASCII code 20H).
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