ACC Programmer's Reference Guide

200 Chapter4
ZCOM C I/F Library Routines
ZCONFIG (3X)
data.setportsc.ptcfg->ptinfo.subchb.tmsl[ ]
Timeslot assignment array: used for actions ZcDSC_ALL_PARMS or
ZcDSC_SET_TIMESLOTS only. Up to 32 timeslot assignments are allowed.
Each element of the array is indexed by the timeslot number. That is, timeslot
0isintmsl[0], timeslot 1 is in tmsl[1], etc. For action ZcDSC_ALL_PARMS,
all timeslots are configured. For action ZcDSC_SET_TIMESLOTS only
timeslot entries with the UPD bit set are configured. The timeslot definition
for each element in the array is shown below:
UPD: The Update bit is used with the ZcDSC_SET_TIMESLOTS action to
identify timeslots which are to be configured. Timeslots with the UPD bit not
set, are unaffected by the ZcDSC_SET_TIMESLOTS action.
Detailed descriptions of the TTI, RTI, Transmit and Receive subchannel
numbers, and the Transmit or Receive fill masks, can be found in the
Siemens MUNICH32 data sheet in Section 4.2.4 T ime Slot Assignment.
A TTI (TransmitTimeslot Inhibit) bitvalue of ‘1’ causes the transmit timeslot
to be placed into tristate. The data is not destroyed but sent in the next
non-tristated timeslot allocated to this subchannel.
A RTI (Receive Timeslot Inhibit) bit value of ‘1’ causes all data received in
this timeslot to be ignored. The subchannel does not process inbound data for
this timeslot.
The Rxcv and Txmit subch nmber fields associate the specified subchannel
number with the Transmit and Receive timeslot, respectively. That is, tmsl[3]
is used to specify which subchannel(s) will be using timeslot 3 for
transmitting and receiving data. Note that they normally are, but are not
required to be the same subchannel number for receiving and transmitting.
The fill mask is used to indicate which bits of the transmit and receive
timeslot holds data.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 UPD TTI Transmit subch number Transmit fill mask
Set to 0 RTI Receive subch number Receive fill mask