3980xpi Users Manual - Data I/O Corporation

Translation Formats
ASCII Octal and Hex Formats, Codes 30-37 and 50-58
Each of these formats has a start and end code, and similar address and
checksum specifications. Figure 5-6 illustrates 4 data bytes coded in each of
the 9 ASCII Octal and Hexadecimal formats. Data in these formats is
organized into sequential bytes separated by the execute character (space,
percent, apostrophe, or comma). Characters immediately preceding the
execute character are interpreted as data. ASCII Octal and Hex formats can
express 8-bit data, by 3 octal, or 2 hexadecimal characters. Line feeds,
carriage returns, and other characters may be included in the data stream as
long as a data byte directly precedes each execute character.
Figure 5-6. ASCII Octal and Hex Formats (example)
FORMAT 30 (OR 35)
FORMAT 31 (OR 36)
FORMAT 32
FORMAT 37
FORMAT 50 (OR 55)
FORMAT 51 (OR 56)
FORMAT 52
FORMAT 53 (OR 58)
FORMAT 57
1
1
1
2
1
1
1
1
2
Optional Octal Address Field (Typical)
Octal Data Byte (Typical)
$A000000,
377 377 377 377 377 377 377 377 377 377 377 377 377 377 377 377 4
$S007760,
Execute Character
Optional Octal Sumcheck Field (Typical)
$A000000,
377%377%377%377%377%377%377%377%377%377%377%377%377%377%377%377% 4
$S007760,
$A000000,
377'377'377'377'377'377'377'377'377'377'377'377'377'377'377'377'
$S007760,
$A000000,
377'377'377'377'377'377'377'377'377'377'377'377'377'377'377'377'
$S007760,
Optional Hex Address Field
$A0000,
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 4
$S0FF0,
Optional Hex Sumcheck Field
$A0000,
FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%
$S0FF0,
$A0000,
FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'
$S0FF0,
$A0000,
FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,
$S0FF0,
$A0000,
FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'FF'
$S0FF0,
1
2
3
LEGEND
Start Code is nonprintable STX - CTRL B (optionally SOH - CTRL A)
Start Code is nonprintable SOM - CTRL R
End Code is nonprintable EOM - CTRL T
End Code is nonprintable ETX - CTRL C
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