Start-Stop Printer Addressing; Start-Stop Printer Attachment 11-Bit Frame Concept; Start-Stop Encoding - IBM 5280 Technical Newsletter
Distributed data system / programmable data station
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- Manual (292 pages) ,
- Programmer's manual (187 pages) ,
- User's setup manual (169 pages)
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Start-Stop Printer Addressing
The start-stop printer attachment MPU selects a printer by
selecting the port to be used. Only one start·stop printer
can be attached to each port and the address for that printer
is always 000. The port addressing is as follows:
Bit(s)
Meaning
0-1
Not used
2-5
Printer address
6-7
Not used
For a description of the printer addresses that can be assigned,
see 705 in the maintenance section.
START-STOP PRINTER ATTACHMENT 11-BIT FRAME
CONCEPT
Information between the start-stop printer adapter and the
start-stop printer is transmitted by an 11-bit frame.
Start-Stop Encoding
Bit Cells
2
3
4
5
6
7
8
9
10 11
Start
r . . ......----
Data Bits----.....,·.tl
Bit
u
Stop
Bit
Parity
Bit
Page of SY31-Cl600-1
As updated April 11),1981
By TN L SN20-9688
Printer Attachment 274.7
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