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Byte
Byte
Byte
Byte
Byte
Byte
Byte
o -
- 1
- 4
- 5
CRC 2
CRC 1
Receive
Poll Index
or
Control
Character
State State
Byte Store &
Sense
Accumulator
LRC
Buffer
Hi
Lo
Control
Transparent
Byte
Accumulator
Time Fill Count
0
Character Buffer Full
0
0
Sense Bit 0
Command Reject
1
Receive Data Lost; Run DISABLE Command
1
ITB Mode
Sense Bit 1
I nterven Required
2
Timeout Control (DISABLE Command)
2
Poll Flag
2
3
Unit Exception Remember
3
Transparent Stop
3
Sense Bit
3
Equipment Check
4
'1' (Synchronous LCW)
4
Pad Flag (Xmit) bee/Data
4
Sense Bit
4
Data Check
check for record receive
5
5
Second Write Command
5
Sense Bit
5
Overrun
Accepted Overrun Remember
6
'O' High Priority Chain Flag
6
Transparent Stop TO Flag;
6
Sense Bit
6
Lost Data
bee check
7
Adapter 2/1
7
I TB Remember
7
Sense Bit 7 Timeout Complete
LCW Byte 4
BIT
HEX
0
2
3
4
5
6
7
8
9
A
B
c
D
E
F
BIT
HEX
0
1
2
3
4
5
6
7
8
9
A
B
c
D
E
F
4
0
0
0
0
0
0
0
0
Figure
0
2
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
6
0
0
0
0
0
0
1
0
0
1
1
0
0
0
0
0
0
1
0
0
1-71.
1-82 (7/69)
7
0
1
0
0
1
0
0
1
0
0
STATE HI DECODE
3
TRANSMITTING
RECEIVING
CONTROL STATE
0
Monitor For Clear to Send
Monitor For First Non-SYN
DISABLE
OLE Decoded, Not In Text Mode
OLE Decoded, Not in Text Mode
0
End (WRITE); Turnaround (POLL)
Monitor For First Non-SYN, Poll Read
ENABLE
1
Not In Text Mode
Receive First Non-SYN Not in Text Mode
DIAL
0
Transmit C RC-2
Expect CRC-2
PREPARE
1
Transmit Pad Character
Invalid Decode
0
Xmit SYN Time Fill, Transparent
Invalid Decode
Stop
Xmit OLE Time Fill, Transparent
Invalid Decode
Stop
0
Transmit CRC-1 (or LRC)
Expect CRC-1 (or LRC)
1
OLE Decoded in Text Mode
OLE Decoded, In Text Mode
0
Xmit, SYN Time Fill In Text Mode
SYN Decoded, In Text Mode
1
Text Mode
Text Mode
0
ENO Decoded, in Poll Transmit
Text Mode
OLE Decoded Transparent Mode or
OLE Decoded, In Transparent Mode
Transparent Stop
0
Xmit SYN Time Fill, Transparent
OLE SYN Decoded, In Transparent
Mode
Mode
Transparent Mode or Transparent
Transparent Mode
Stop
STATE LO DECODE
Control State; DIAL Step 1
WRITE
Receive Monitor
READ
DIAL Step 2
POLL Write
Invalid Decode
POLL Read
DIAL Step 3
Invalid Decode
ADPREP Monitor
Invalid Decode
Invalid Decode
Invalid Decode
ADPREP Control
Invalid Decode
Synchronous
LCW Format
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