Serial Interface Data Stream - Genicom 4810 User Manual

Serial Interface
(continued)
Serial Interface Data Stream
Nov 93
Most serial interface applications can be matched by using various
combinations of stop bit(s), parity. and 7- or 8-bit data. Appendix F and
Chapter 2 have information on changing strap settings.
Interface strap A30 selects 1 or 2 stop bits, B2 selects parity, and B6 selects
7- or 8-bit data.
The following chart illustrates the possible combinations.
INTERFACE STRAP
DATA STREAM
TOTAL
A30 B2 B6
BITS
0 0 0 START+ 7 DATA+ PARITY+ 1 STOP BIT 10
1
0 0 START + 7 DATA + PARITY + 2 STOP BITS 11
0 1 0 START + 7 DATA+ 1 STOP BIT 9
1 1
0 START + 7 DATA + 2 STOP BITS 10
0 0 1 START +
B DATA + PARITY + 1 STOP BIT
11
1
0
1 START + 8 DATA + PARITY + 2 STOP BITS
12
0 1 1 START + 8 DATA + 1 STOP BIT
10
1 1 1 START+ 8 DATA+ 2 STOP BITS 11
NOTE:
Interface strap B 1
om
causes the 8th bit to be interpreted as a PI
lead. * DATA becomes 7 DATA+ PI.
Chap,« 4. Prin1er ln1<rface
4-9