IBM Series 1 User Manual page 137

Figure 4-3. Transmit operation timing diagram
WR WR
CD
I.A.
CD
I.A.
\
______
-Jlr----T-ra-n-sm-l-·t-o-p--~·
' - - - T Xo
----i.~1
---.. TL
~
Key:
) 1
(
(
- - . . TL
1 - - -
CD
Post device end interrupt (condition code 3)
LA. Interrupt accept
WR Write command accepted
Baud rate
TXO (milliseconds)
IL
(milliseconds)
9600 .936 .208
4800 1.87
.416
2400 3.74 .832
1200 7.49 1.66
600
14.98 3.33
300 29.96 6.66
200 44.94 10.0
150 59.9
13.3
110 81.9 18.2
100 89.88 20.0
75 119.08
26.6
50
179.76 40.0
TXO and T L are ±O.l %
I
4-14
GA34-0033
CD
(
~
,
;
/
Transmit op
I
..
c