RCA Spectra 70 - E - USA Standard Code for Information Interchange

APPENDIX E
USA STANDARD CODE FOR INFORMATION INTERCHANGE (USASCII)
(Extended to 8 Bits)
76X5 ~(---------------------------------4321-------------------------------------------7
HEX
~
0 1 2 3
4
!
0000
0001 0010
0011 0100
0 0000
NUL SOH STX
ETX
EOT
1 0001 DLE
DCI DC2 DC3 DC4
2 0010
3 0011
4 0100
SP !
"
#
$
5
0101 0
I
2 3
4
6
0110
7
0111
8 1000
9 1001
A
1010
@
A B
C
D
I
1011
P Q
R
S T
-c
1100
D
1101
E
1110
\
a
b
c d
F 1111
P
q
r
s t
Bit Positions: 7 6 X 5 4 3 2 I
Control Characters:
NUL -Null
SOH - Start of Heading (CC)
STX - Start of Text (CC)
ETX - End of Text (CC)
EOT - End of Transmission (CC)
ENQ - Enquiry (CC)
ACK - Acknowledge (CC)
BEL - Bell (audible or attention signal)
BS - Backspace (FE)
HT - Horizontal Tabulation
LF
VT
FF
CR
SO
SI
DLE
DCI
DC2
(punch card skip) (FE)
- Line Feed (FE)
- Vertical Tabulation (FE)
- Form Feed (FE)
- Carriage Return (FE)
- Shift Out
- Shift In
- Data Link Escape (CC)
- Device Control
I
- Device Control 2
5
6
0101 0110
ENQ ACK
NAK SYN
%
&
5 6
E F
U V
e
f
u v
241
7
0111
BEL
ETB
,
7
G
W
g
w
8
9
A
B
C
D
1000
1001
1010
1011
1100
1101
BS HT
LF
VT FF
CR
CAN
EM
SUB
ESC FS
GS
( )
*
+
-
,
8
9 :
;
<
=
H
I
J
K
L
M
x Y Z
[
'"
]
h i
j k I
m
x
y
z
{
I
}
DC3 - Device Control 3
DC4 - Device Control
4 (stop)
NAK - Negative Acknowledge (CC)
SYN - Synchronous Idle (CC)
ETB - End of Transmission Block (CC)
CAN -Cancel
EM - End of Medium
SUB - Substitute
ESC -Escape
FS - File Separator (IS)
GS - Group Separator (IS)
RS - Record Separator (IS)
US - Unit Separator (IS)
DEL -Delete
81' - Space (normally non-printing)
(CC) - Communication Control
(FE) - Format Effector
(IS) - Information Separator
E
F
1110
1111
SO
SI
RS
US
I
>
?
N 0
/I.
-
n 0
--'
DEL