4-5
Table 4.1. The ASCII Character Code
COL 0 1 2 3 4 5 6 7
DB6= 0 0 0 0 1 1 1 1
DB5= 0 0 1 1 0 0 1 1
DB4= 0 1 0 1 0 1 0 1
ROW
HD DDDD
EE BBBB
XC3210
00 0000 NULDLE SP0 @ P ' p
11 0001 SOHDC1 ! 1 A Q aq
22 0010 STXDC2 " 2 B R br
33 0011 ETXDC3 # 3 C S c s
44 0100 EOTDC4 $ 4 D T dt
55 0101 ENQNAK % 5 E U eu
66 0110 ACKSYN & 6 F V f v
77 0111 BELETB ‘ 7 G W gw
88 1000 BS CAN( 8 H X hx
99 1001 HT EM ) 9 I Y i y
A101010 LF SUB * : J Z j z
B111011 VT ESC + ; K [ k {
C121100 FF FS , < L \ l |
D131101 CR GS - = M ] m}
E141110 SO RS . > N ^ n~
F151111 SI US / ? O _ oDEL
Non-numeric symbols (e.g., letters) or unprinted characters that are sent in hex
data strings are transmitted as the two characters of their hex address;
For example: “*” is “2A”
Carriage Return is “0D”
Line feed is “0A”
XON=DC1 is “11”
XOFF=DC3 is “13”.
4. Definitions
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