Specifications

4 Message Reference
66
4.5 Status Request Messages
Status request messages can be used to poll the status of modules or systems running
on the board.
The messages in the status request category include:
 LIU_MSG_R_STATE - LIU State Request
 LIU_MSG_R_STATS - LIU Read Statistics Request
 MGT_MSG_R_BRDINFO - Read Board Info Request
4.5.1 LIU_MSG_R_STATE - LIU State Request
Synopsis
Message sent by the application to read the current state of a Line Interface Unit (LIU).
Format
MESSAGE HEADER
Field Name
Meaning
type
LIU_MSG_R_STATE (0x5e39)
id
liu_id
src
Sending Module ID
dst
MVD_TASK_ID (0x10)
rsp_req
used to request a confirmation
hclass
0
status
Status Response (if confirmation requested)
err_info
0
len
1
PARAMETER AREA
Offset
Size
Name
1
1
state
Description
This message is sent to the DSI SPCI Board to read the current operating state of a
Line Interface Unit.
The user should always request a confirmation message. This indicates success by
status of zero and contains the current state in the parameter area of the message.
Parameters
state
The current state of the LIU from the following table: