UM0934 datasheet(65/113 Pages) STMICROELECTRONICS

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UM0934

Management information base (MIB)

Doc ID 17389 Rev 2

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6.2

MIB read request

This command is used by the external host to read the value of an object of the ST7570

MIB. A CMD_ReadDBRequest contains the MIB parameter to be read:

The ST7570 checks the request for validation. Then, according to the result of the check:

●

if valid, the object is read from the MIB and the ST7570 replies with a

CMD_ReadDBConfirm

●

if not valid, the request is rejected and the ST7570 replies with a CMD_ReadDBError().

6.3

MIB error message codes

All the error message codes are listed and described in Table 70, with identifier values.

Please note that these are only the error codes common to all the MIB parameters: for

specific error codes of every MIB object, refer to the single MIB parameters description.

Table 69.

MIB read request: Data

Byte

Label

Description

0 .. 1 INDEX

Database entry index. Refer to the MIB table (

Table 71) for available objects. LSByte

sent first.

Table 70.

MIB error message codes

Error ID

Description

Value

ERR_UNAVAILABLE_RESOURCE

Unavailable resource: no MIB parameter with the specified index

011h

ERR_REQUEST_NOT_ALLOWED

Request not allowed

012h

ERR_ILLEGAL_DATA_COMMAND

Illegal data command

022h

ERR_ILLEGAL_LOCAL_MAC_ADR

Illegal local MAC address

023h

ERR_ILLEGAL_INITIATOR_MAC_ADR Illegal initiator MAC address

024h

ERR_PARAM_VAL_OUTOFRANGE

Parameter value out of range

026h

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