UM0932 datasheet(21/43 Pages) STMICROELECTRONICS

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UM0932

Host interface

Indication commands

Indication commands are sent by the ST7580 to the external host. They notify a reset event

or a power line data reception. Table 15 lists all the indication commands: their syntax and

data fields are explained in the next paragraphs.

3.3.1

BIO_ResetRequest (3Ch)

This command is used by the external host to force software reset in the ST7580.

3.3.2

BIO_ResetConfirm (3Dh)

This command is sent by the ST7580 after the correct reception of a BIO_ResetRequest

(Section 3.3.1) command.

The ConfirmData field is always composed of 1 byte equal to 00h.

Table 14. Error commands: ErrorData

Error cause

Value

Description

Wrong parameter length (WPL)

02h

Data field length in the previous request was wrong

Wrong parameter value (WPV)

03h

At least one of the parameters values in the previous

request was invalid.

Busy

04h

System busy, operation couldn’t be performed.

Thermal error

0Bh

Device internal temperature within threshold 4

[Section 5], ST7580 refused to transmit.

General error

FFh

Generic error code.

Table 15. Indication command codes

Group

Command

Code

Reset

BIO_ResetIndication (Section 3.3.3)3Eh

Data

PHY_DataIndication (Section 3.3.14)

26h

DL_DataIndication (Section 3.3.17)

52h

DL_SnifferIndication (Section 3.3.18)5Ah

SS_DataIndication (Section 3.3.21)

56h

SS_SnifferIndication (Section 3.3.22)5Eh

Table 16. BIO_ResetRequest: syntax

Source

Command(Args)

Possible response

Ext. host

CMD_ResetRequest()

BIO_ResetConfirm

Table 17. BIO_ResetConfirm: syntax

Source

Command(Args)

Possible response

ST7580

BIO_ResetConfirm(ConfirmData)

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