Xerox 4213 MICR MRP User Guide
COAX COMMUNICATIONS BUFFER
Orders
Orders accepted by the XCTO are operations that control
printing and mode changing. The PCIA bytes X‘0016-0017‘
specify the type of order the printer is required to perform. The
first byte (X‘0016‘) contains the order and the second byte
(X‘0017‘) contains any applicable parameters for that order. The
following are valid orders:
printing and mode changing. The PCIA bytes X‘0016-0017‘
specify the type of order the printer is required to perform. The
first byte (X‘0016‘) contains the order and the second byte
(X‘0017‘) contains any applicable parameters for that order. The
following are valid orders:
01
Abort
02
SSA—System Status Available
03
Print processing
05
Load translate table(s) (ignored)
06
3270/DSC/DSE (DSC) query (ignored)
07
DSC load structured field (IPDS) (ignored)
For any other orders, the XCTO returns an ‘order reject’ and
‘order complete’ to the host system.
‘order complete’ to the host system.
Abort
On receipt of an abort order, the XCTO terminates the current
order and then responds with order complete in the status byte
(byte 'X0000').
order and then responds with order complete in the status byte
(byte 'X0000').
This order has no parameters, so the abort order does not use
PCIA byte X'0017'.
PCIA byte X'0017'.
System Status Available (SSA)
The SSA order allows the host control unit to change the print
mode. If the printer is in SCS mode, this order also allows a
request for either PA1 or PA2 action by the host.
mode. If the printer is in SCS mode, this order also allows a
request for either PA1 or PA2 action by the host.
The parameter byte (PCIA byte X'0017') codes accepted for this
order are given on page E-6. If these parameters are incorrect,
'order reject' is returned to the host system.
order are given on page E-6. If these parameters are incorrect,
'order reject' is returned to the host system.
XEROX COAX/TWINAX OPTION (XCTO) PROGRAMMER REFERENCE
E–9