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Offset<br />
28 (1C)<br />
Bytes and Field<br />
Alignment Name<br />
(DECTPCOD 05<br />
Continued)<br />
(DECTPCOD<br />
continues)<br />
DATA EYENt' CONTROL BLOCK -- BTAM<br />
Hex.<br />
Dig. Field Description,Contents, Meaning<br />
WTTA Sense - WT telegraph terminals<br />
Write EOA EOT EOT EOT sequence before<br />
2740,<br />
Basic<br />
2760<br />
selection.<br />
write EOT sequence before polling or<br />
addressing.<br />
't-lrite response to text.<br />
Write EOA and 15 idle characters.<br />
Write EOA PRE o.<br />
03 Write polling, addressing, or broadcast<br />
characters.<br />
poll<br />
TWX Write turnaround sequence.<br />
TWX,BSC write CPU-ID sequence.<br />
BSC Write ENQ<br />
04<br />
2140 SC<br />
2260R<br />
83B3<br />
1030<br />
WTTA<br />
158 OS <strong>System</strong> <strong>Control</strong> <strong>Blocks</strong> (Release 21.1)<br />
Write space, sense<br />
(2740 SC - 2740 with station control).<br />
Write 2848 command.<br />
Write FIGS characters.<br />
Write 1.<br />
Write WRU.<br />
Write Identification.<br />
write pad characters.<br />
Write LTRS characters.<br />
05 Read response to polling.<br />
06 Read response to address ing.<br />
07 TWX,BSC Read ID response.<br />
08 1030 Write end-of-addressing character<br />
1050 after addressing.<br />
2740<br />
1060<br />
2260R<br />
BSC Write response to Inquiry.<br />
Write response to text.<br />
2760 write EOB character.<br />
09 NOP or TIC after Poll in a READ with<br />
SSALST, SSAWLST, AUTOLST, or AUTOWLST.<br />
OA Read Index (Auto poll) •<br />
Read response to polling (programmed<br />
polling).<br />
OB BSC Read inquiry.<br />
OC BSC Read response to inquiry.
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