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LCW Byte 4
STATE HI DECODE
BIT
0
1
2 3
I BM XMIT/RECV
TTY XMIT/RECV
CONTROL STATE
HEX
0
0
0
0
0
Receive Monitor
Receive Monitor
Receive Monitor (DISABLE)
1
0
0
0
1
Invalid Decode
Read Data, TTY-I
PREPARE Break
2 0
0
0
ENABLE (Switched Network)
3 0
0
1
Read Data
Read Data, TTY-I I
DIAL (IBM-I, TTY-II)
4
0
0
0
Read LRC, I BM-I
Invalid Decode
PREPARE
5 0
0
1
Read End IBM
Read End TTY
6 0
0
Invalid Decode
Read FIGS H Remember, TTY-I
7 0
1
1
Poll Read
Read First Non L TRS, TTY-I
8
0
0
0
Write Data
Write Data, TTY-II
9
0
0
1
Write Stop
Write Stop
A
0
0
Write LRC, I BM-I
Break Data
B
0
1
1
Write Prepend
Write Shift Remember, TTY-I
c
0
0
Write Shift Remember, I BM-I
Write Data, TTY-I
D
0
1
Poll Initial
E
0
Poll Write
Break Initial
F
Write End
Write End
STATE LO DECODE
BIT
4
5
6
7
HEX
0
0
0
0
0
Control State; DIAL Step 1
0
0
0
I BM Text in Downshift Mode: I BM POLL Write Step 3
2
0
0
0
TTY Downshift Mode
3 0 0
I BM Control, (Downshift) Mude
4
0
0
0
DIAL Step 2
5
0
0
I BM Text Out. Downshift Mode: POLL Write Step 2
6 0
1
0
Invalid
7
0
1
1
1
I BM, Control, Downshift Mode: POLL Write Step 1
8
0
0
0
DIAL Step 3
9
0
0
IBM-I Text In, Upshift Mode
A
0
0
TTY-I Upsh ift Mode
B
0
1
1
I BM-I Control, ( Upsh ift Mode)
c
1
0
0
Invalid
D
0
1
IBM-I Text Out, Upshift Mode; IBM POLL Write Step 0
E
0
Invalid
F
I BM-I Control, (Upshift Mode)
Figure 1-72.
Start/Stop LCW Format (Part 2 of 2)
1-84 (7/69)
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