6530 Programmer's Guide

6530 Programmer’s Guide A-1
A
ASCII Character Set
This appendix lists the characters of the standard ASCII character set,
which is supported by the 6530. The characters are divided into two
groups: control characters and graphics (displayable) characters.
Table A lists the control characters as well as their ASCII codes, the
functions they perform, and the keys used to invoke them from the
keyboard (conversational mode only). Although all the control characters
can be generated, the 6530 only recognizes a subset of these codes. Any
unrecognized codes are ignored.
Table A-2 on page A-3 lists the graphics characters along with their
ASCII codes. These characters are generated from the keyboard by
simply pressing the key (along with the Shift key for uppercase)
associated with the characters.
Table A-1. Control Characters
Character
ASCII
Code Function Keys Used
NUL 00H Null (fill) CTRL @
SOH 01H Start of header CTRL A
STX 02H * Start of text CTRL B
ETX 03H * End of text CTRL C
EOT 04H * End of transmission CTRL D
ENQ 05H Enquiry CTRL E
ACK 06H Acknowledgment CTRL F
BEL 07H Bell (audible alarm) CTRL G
BS 08H Backspace CTRL H
HT 09H Horizontal tab CTRL I