Xerox 4213 MICR MRP User Guide
COAX COMMUNICATIONS BUFFER
Control unit output area
Table E-2.
Control unit output area
Address
Function
Description
X'0010'
Mode
Bit 0-4
Bit 5
Bit 6-7
Bit 5
Bit 6-7
Reserved
Enable set attribute control code (SCS only)
Ignored
Enable set attribute control code (SCS only)
Ignored
X'00011
Mode
Bit 0-2
Bit 3-4
Bit 3-4
Bit 5-7
Reserved
00 - Host-directed
00 - Host-directed
copy
01
-
Host-initiated local copy
10
-
Operator-initiated local copy
11 - Reserved
000
000
-
No mode
001
- Datastream
compatible
mode (DSC) - BSC
101
-
Datastream emulation
mode (DSE) - SNA
mode (DSE) - SNA
110
-
LU-1 mode
111
-
Reserved
X'0012'
to
X'0013'
to
X'0013'
Message
Starting
Address
(
MSA
)
These two bytes define the point in the message
area where the current message begins
area where the current message begins
X'0014‘
to
X'0015‘
to
X'0015‘
Message
Length
These bytes define the length of the current message.
If the length is zero, nothing is printed.
In SCS mode, data wraps from the end of the
character buffer to address X'0050'
In non-SCS mode, data is loaded to the end of the
character buffer only.
If the length is zero, nothing is printed.
In SCS mode, data wraps from the end of the
character buffer to address X'0050'
In non-SCS mode, data is loaded to the end of the
character buffer only.
X'0016
'
Order
Code X'01'
Code X'02'
Code X'03'
Code X'05'
Code X'06'
Code X'07'
Code X'02'
Code X'03'
Code X'05'
Code X'06'
Code X'07'
Abort
System status available
Print processing
Load translate tables (ignored)
3270/DSC/DSE (ignored)
DSC load structured field (ignored)
System status available
Print processing
Load translate tables (ignored)
3270/DSC/DSE (ignored)
DSC load structured field (ignored)
XEROX COAX/TWINAX OPTION (XCTO) PROGRAMMER REFERENCE
E–5