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4 liu read control request – Dialogic DSI SPCI Network Interface Boards User Manual

Page 60

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6 Message Reference

60

Value

Mnemonic

Description

0x01

None

Invalid framer ID.

0x02

None

Invalid message length.

0x03

None

Control parameters are not consistent with the type of
device being controlled or with each other.

6.3.4

LIU Read Control Request

Synopsis:
Message sent by the application to read back the current LIU control options

from the DSI SPCI Board.

Message Format:

MESSAGE HEADER

Field Name

Meaning

type

LIU_MSG_R_CONTROL (0x5e38)

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

16

PARAMETER AREA

Offset Size

Name

0

16

Parameter area formatted as for the LIU_MSG_CONTROL
message. The user should set the fields to zero and the
module writes the current control parameters in the
confirmation message.

Description:
This message is sent to the DSI SPCI Board to read back the current control
parameters selected for the Line Interface Unit.

The user should always request a confirmation message. This indicates

success by status of zero and contains the current control parameters in the

parameter area of the message.