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COAX COMMUNICATIONS BUFFER
Table D-3. Control unit output area (continued)
Address Function Description
X'0017' Order
Parameters
Abort
System
Status
Available
SCS
Mode
Print
Processing
Order
Parameters
Non-LU1
Mode Print
Bit 0—7
Code X'00'
Code X'02'
Code X'03'
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4—6
Bit 7
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5—6
Bit 7
The bits of this byte have different meanings for
different orders:
Reserved
Mode change
Enter send state (LU1 mode only)
Enter receive state (LU1 mode only)
0—Extended order parameter not used
1—Extended order parameter valid
(byte 0022)
0—Not first segment of first-in-chain
1—First segment of first-in-chain
0—Not last segment of last-in-chain
1—Last segment of last-in-chain
0—SCS EBCDIC data code (Reserved)
Reserved
Ignored - SCS data stream processing only
The bits of this byte have different meanings for
different orders:
Reserved
0—Reserved
1—Reserved
Reserved
0—Character buffer control codes
X'01' through X'07'
are control codes in Base and APL
1—Character buffer control codes
X'01' through X'07' are control codes
only if the attribute buffer byte
equals xxxxx001 (APL).
Otherwise, control codes 01—07 are
translated to graphics.
0—Print without the attribute buffer
1—Print with the attribute buffer
00—Use machine default for Dual/Mono Case
01—Mono Case
10—Dual Case