AMERICAN STANDARD CODE FOR INFORMATION INTERCHANGE (ASCII)

Standard No. X3.4 - 1968 of the American National Standards Institute

B7B6B5 (column)


B4B3B2B1

Row (hex)

000

0

001

1

010

2

011

3

100

4

101

5

110

6

111

7

0000

0

NUL

DLE

SP

0

@

P

`

p

0001

1

SOH

DC1

!

1

A

Q

a

q

0010

2

STX

DC2

"

2

B

R

b

r

0011

3

ETX

DC3

#

3

C

S

c

s

0100

4

EOT

DC4

$

4

D

T

d

t

0101

5

ENQ

NAK

%

5

E

U

e

u

0110

6

ACK

SYN

&

6

F

V

f

v

0111

7

BEL

ETB

'

7

G

W

g

w

1000

8

BS

CAN

(

8

H

X

h

x

1001

9

HT

EM

)

9

I

Y

I

y

1010

A

LF

SUB

*

:

J

Z

j

z

1011

B

VT

ESC

+

;

K

[

k

{

1100

C

FF

FS

,

<

L

/

l

|

1101

D

CR

GS

-

=

M

]

m

}

1110

E

SO

RS

.

>

N

^

n

~

1111

F

SI

US

/

?

O

_

o

DEL


Control Codes:

NUL Null DLE Data link escape
SOH Start of heading DC1 Device control 1
STX Start of text DC2 Device control 2
ETX End of text DC3 Device control 3
EOT End of transmission DC4 Device control 4
ENQ Enquiry NAK Negative acknowledge
ACK Acknowledge SYN Synchronize
BEL Bell ETC End transmitted block
BS Backspace CAN Cancel
HT Horizontal tab EM End of medium
LF Line feed SUB Substitute
VT Vertical tab ESC Escape
FF Form feed FS File separator
CR Carriage return GS Group separator
SO Shift out RS Record separator
SI Shift in US Unit separator
SP Space DEL Delete or rubout

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