UM0934 datasheet(63/113 Pages) STMICROELECTRONICS

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UM0934

Host interface

Doc ID 17389 Rev 2

63/113

5.3.25

CMD_IS_Indication (15h)

This command is sent by the ST7570 to external host to notify it after the MIB object 0009h

(Timeout Intelligent Synchronization, Section 6.5.10) value will be elapsed.

5.3.26

CMD_SyntaxError (20h)

This command is sent by the ST7570 to the external host after receiving a local frame with

syntax errors, meaning that at least one of the following cases has been detected:

●

the value declared in the length field has not been respected in the data field

transmission

●

the value declared in command code does not correspond to any command listed in

Table 15

After the reception of a local frame with a wrong checksum field, an NAK acknowledgement

is sent.

Table 64.

CMD_IS_Indication: Syntax

Source

Command(Args)

Possible response

ST7570

CMD_IS_Indication(IndicationData)

None

Table 65.

CMD_IS_Indication: ConfirmData

Byte Index

Label

Description

IS_STATUS

LM_LOCKED (01h): A valid MAC frame has been received within the Intelligent

Synchronization Timeout by at least one Initiator with a MAC address within FIMA

and LIMA

LM_NOT_LOCKED (02h): A valid MAC frame has not been received within the

Intelligent Synchronization Timeout by at least one Initiator with a MAC address

within FIMA and LIMA

LM_NOT_REGISTERED (03h): after receiving a valid MAC frame during Intelligent

Synchronization first phase, the node has not been registered (its Local MAC address

is still equal to NEW)

LM_TO_NOT_ADDRESSED (04h): after receiving a valid MAC frame during

Intelligent Synchronization first phase, the Timeout frame not addressed elapsed.

In the case the IS_STATUS is equal to LM_LOCKED, the following additional bytes are appended

1..2

ADD

Initiator MAC Address of the MAC frame received with the highest signal level during

Intelligent Synchronization first phase.

3..4

Max Received Signal level (between S0, S1), expressed as 100*dB

µV

Table 66.

CMD_SyntaxError: Syntax

Source

Command(Args)

Possible response

ST7570

CMD_SyntaxError(ErrorData)

None

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