Specifications

4 Message Reference
48
4.3.5 MVD_MSG_SC_DRIVE_LIU - LIU Switch Initialization
Synopsis
Sets up a static switch path through the board between a CPU local bus timeslot and a
switching channel.
Format
MESSAGE HEADER
Field Name
Meaning
type
MVD_MSG_SC_DRIVE_LIU (0x7e18)
id
0
src
Sending module's Id
dst
MVD_TASK_ID
rsp_req
Used to request a confirmation
hclass
0
status
0
err_info
0
len
10
PARAMETER AREA
Offset
Size
Name
0
2
liu_id
2
2
sc_channel
4
4
ts_mask
8
2
mode
Description
This message is sent to connect selected CPU local bus timeslots from an T1/E1/J1 Line
Interface Unit (LIU) or CPU stream to a block of cross connect switch channels. Upon
receiving this message, switch channels are prepared to make a cross connect switch
connection to outgoing CPU local bus timeslots upon receiving subsequent
MVD_MSG_SC_LISTEN messages.
The confirmation message (if requested) indicates success with a status value of 0.
Parameters
liu_id
The identifier of the T1/E1/J1 LIU in the range 0 to one less than the number of LIUs.
This parameter can be set to a value of a CPU local bus streams in the range of 0x90
upwards, where the number of CPU local bus streams equals one less than the number
of LIUs. The timeslot value 0 to 31 in the ts_mask parameter correspond to the
signalling processors signaling links.
sc_channel
The logical value of the first switch channel to be used. This should be in the range of 0
to the total number of channels available on the board.