ACC Programmer's Reference Guide

112 Chapter3
ZCOM Tables and Data Structures
Message Header
MRQCODE - Terminal request code
This field contains the request code sent to or received from the Mux
firmware on the interface card. The message request code values are
shown in Table 3-39.
MRQTERM - Terminal number
This is the relative terminal number within the Mux card. It comes from
the PTTERM field in PTT.
MRQSTAT - Request status
This is the status code returned from the protocol module and may be
protocol type dependent.
MRQTAG -Tagparameter
This tag parameteris used to carry protocol specific information from the
application program to the protocol module on the Mux card and return
information from the firmware to the driver or application program.
Table 3-39 MRQCODE Terminal request codes
Request Value Description
ZCOM_MRQCODE_UND 0 Undefined type
ZCOM_MRQCODE_READ 1 Terminal input
ZCOM_MRQCODE_WRITE 2 Terminal write
ZCOM_MRQCODE_CNTWR 3 Terminal write
ZCOM_MRQCODE_STDT 4 (Internal Use) status transfer
ZCOM_MRQCODE_STATUS 5 Unsolicited status change
ZCOM_MRQCODE_TERM 6 Set terminal parameters
ZCOM_MRQCODE_ENB 7 Terminal enable
ZCOM_MRQCODE_DSB 8 Terminal disable
ZCOM_MRQCODE_ACT 9 Message from remote terminal
ZCOM_MRQCODE_DEA 10 Terminal deactivate
ZCOM_MRQCODE_DEL 11 Terminal delete
ZCOM_MRQCODE_PORT 14 Port configuration
ZCOM_MRQCODE_MULTI 15 Multi-completion RXDT request code