Texas Instruments 880 User Manual page 48

The control characters the Model 880 recognizes
are listed in Table 5-2. Codes not listed are
ignored.
Control
Char
NUL
EOT
ENQ
BEL
BS
HT
LF
VT
FF
CR
SO
SI
DC1
DC2
5-2
Hex
Code
00
04
05
07
08
09
OA
OB
OC
00
OE
OF
11
12
Decimal
Code
o
4
5
7
8
9
10
11
12
13
14
15
17
18
Table 5-2. Control Character Operations
Description and Operation
Null. Terminates some tab set escape sequences.
End Of Transmission. Cnfg. code 99 ON: Current data line is odd horizontal raster
graphics data; code 99 OFF: Not used.
Enquiry. Cnfg. code 99 ON: Current line of data is even horizontal raster graphics
data; code 99 OFF: Not used.
Bell. Makes short beep
Backspace. Moves the logical print position back one space. No operation at left
margin.
Horizontal tab. Moves logical print position to next horizontal tab. Does CR and LF if
no tabs are set between current position and right margin.
Line Feed. Cnfg. code
84
or 8B ON: Prints line, advances paper one line, logical CR
to left margin; Codes 84 and 8B OFF: prints line, advances paper one line to next
logical print position in the same column.
Vertical tab. Cnfg. code 8B ON: Adds auto CR. Code 8B OFF: Prints line, advances
paper to next tab, same column.
Form feed. Prints line, advances paper to the top left margin of the next form.
Carriage return. Cnfg. code
85
ON: Prints line, does CR and LF; code 85 OFF: Prints
line and does CR only.
Shift Out. Cnfg. code 9A ON: Expanded print line if first character in line; code 9A
OFF: Select G1 character set as active GL character set.
Shift In. Select GO character set as active GL character set.
Device Control 1. Cnfg. code 83 ON: Transmitted on serial interface to indicate
"READY." (A received DC1 is ignored.) Cnfg code
83
OFF: Not used.
Device Control
2.
Cnfg. code 8B ON: Tab to line of decimal number of next byte and
do CR. Code 8B OFF: Tab to line of decimal number of next byte.
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