TR3271 Management Programming Manual

COMMANDS AND RESPONSES
ALTER Command
ZDROP-RTS A Boolean variable that specifies whether the
Request To Send (RTS) signal is dropped when
the software switches from a write operation to
a read operation. If the value is ZSPI-VAL-
TRUE, the signal will be dropped when switching
operations. If the value is ZSPI-VAL-FALSE, the
RTS signal will not be dropped. The default
value is ZSPI-VAL-FALSE.
ZINIT-STATUS A 32-bit integer that specifies the initial IBM
status that the TR3271 subsystem returns when it
receives a SELECT for a subdevice that has not
been OPENed or CONNECTed. The possible values
are as follows:
0 The TR3271 subsystem responds with
a Wait for acknowledgement (WACK)
indicating that the subdevice
is busy. The subdevice remains busy
until an application OPENs or
CONNECTs the subdevice. Note that
this can have a cyclic effect; the
host front-end might resend a SELECT
each time it receives a WACK from
the TR3271 subsystem.
%177776 The TR3271 subsystem does not
respond to SELECTs. Consequently,
the host times out the subdevice
provided the subdevice has not been
OPENed or CONNECTed before the
timeout period elapses.
%177777 The TR3271 subsystem responds with
an ACK0 and acknowledges data from
the host. Although acknowledged,
the data is discarded because it was
unsolicited. An event message 112
is sent to the EMS log indicating
that data has been discarded (see
the description of event message 112
in Section 7, "Event Management").
Data from the host continues to be
discarded until an application OPENs
or CONNECTs the subdevice.
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