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Appendix A: Character Charts
A–2
TDS Family Oscilloscope Programmer Manual
Table A–2: ASCII & GPIB Code Chart
B7
B6
B5
T
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
BI
T
S
B4 B3 B2 B1
CONTROL
NUMBERS
SYMBOLS
UPPER CASE LOWER CASE
0 0 0 0
0
NUL
00
20
DLE
10 16
40 LA0
SP
20 32
60 LA16
0
30 48
100 TA0
@
40 64
120 TA16
P
50 80
140 SA0
60 96
160 SA16
p
70 112
0 0 0 1
1 GTL
SOH
11
21 LL0
DC1
11 17
41 LA1
!
21 33
61 LA17
1
31 49
101 TA1
A
41 65
121 TA17
Q
51 81
141 SA1
a
61 97
161 SA17
q
71 113
0 0 1 0
2
STX
22
22
DC2
12 18
42 LA2
22 34
"
62 LA18
2
32 50
102 TA2
B
42 66
122 TA18
R
52 82
142 SA2
b
62 98
162 SA18
r
72 114
0 0 1 1
3
ETX
33
23
DC3
13 19
43 LA3
#
23 35
63 LA19
3
33 51
103 TA3
C
43 67
123 TA19
S
53 83
143 SA3
c
63 99
163 SA19
s
73 115
0 1 0 0
4 SDC
EOT
44
24 DCL
DC4
14 20
44 LA4
$
24 36
64 LA20
4
34 52
104 TA4
D
44 68
124 TA20
T
54 84
144 SA4
d
64 100
164 SA20
t
74 116
0 1 0 1
5 PPC
ENQ
55
25 PPU
NAK
15 21
45 LA5
%
25 37
65 LA21
5
35 53
105 TA5
E
45 69
125 TA21
U
55 85
145 SA5
e
65 101
165 SA21
u
75 117
0 1 1 0
6
ACK
66
26
SYN
16 22
46 LA6
&
26 38
66 LA22
6
36 54
106 TA6
F
46 70
126 TA22
V
56 86
146 SA6
f
66 102
166 SA22
v
76 118
0 1 1 1
7
BEL
77
27
ETB
17 23
47 LA7
27 39
'
67 LA23
7
37 55
107 TA7
G
47 71
127 TA23
W
57 87
147 SA7
g
67 103
167 SA23
w
77 119
1 0 0 0
10 GET
BS
88
30 SPE
CAN
18 24
50 LA8
(
28 40
70 LA24
8
38 56
110 TA8
H
48 72
130 TA24
X
58 88
150 SA8
h
68 104
170 SA24
x
78 120
1 0 0 1
11
T
C
T
HT
99
31 SPD
EM
19 25
51 LA9
)
29 41
71 LA25
9
39 57
111 TA9
I
49 73
131 TA25
Y
59 89
151 SA9
i
69 105
171 SA25
y
79 121
1 0 1 0
12
LF
A10
32
SUB
1A 26
52 LA10
2A 42
*
72 LA26
3A 58
:
112 TA10
J
4A 74
132 TA26
Z
5A 90
152 SA10
j
6A 106
172 SA26
z
7A 122
1 0 1 1
13
VT
B11
33
ESC
1B 27
53 LA11
+
2B 43
73 LA27
3B 59
;
113 TA11
K
4B 75
133 TA27
[
5B 91
153 SA11
k
6B 107
173 SA27
{
7B 123
1 1 0 0
14
FF
C12
34
FS
1C 28
54 LA12
2C 44
,
74 LA28
<
3C 60
114 TA12
L
4C 76
134 TA28
\
5C 92
154 SA12
l
6C 108
174 SA28
7C 124
1 1 0 1
15
CR
D13
35
GS
1D 29
55 LA13
–
2D 45
75 LA29
=
3D 61
115 TA13
M
4D 77
135 TA29
]
5D 93
155 SA13
m
6D 109
175 SA29
}
7D 125
1 1 1 0
16
SO
E14
36
RS
1E 30
56 LA14
2E 46
.
76 LA30
>
3E 62
116 TA14
N
4E 78
136 TA30
5E 94
^
156 S
A1
4
n
6E 110
176 SA30
7E 126
~
1 1 1 1
17
SI
F15
37
US
1F 31
57 LA15
/
2F 47
77 UNL
?
3F 63
117 TA15
O
4F 79
137 UNT
5F 95
–
157 SA15
o
6F 111
177
7F 127
RUBOUT
(DEL)
A
DDR
E
SS
E
D
COMMANDS
UN
IVE
RS
AL
COMMANDS
LISTEN
ADDRESSES
TALK
ADDRESSES
SECONDARY ADDRESSES
OR COMMANDS
Tek
tron
ix
REF: ANSI STD X3.4-1977
IEEE STD 488.1-1987
ISO STD 646-2973
5 PPC
ENQ
55
GPIB code (with ATN asserted)
hex
octal
decimal
ASCII character
KEY