UM0934 datasheet(61/113 Pages) STMICROELECTRONICS

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UM0934

Host interface

Doc ID 17389 Rev 2

61/113

5.3.23

CMD_RC_Request (61h)

This command is sent by the external host to request a Repeater Call session (Section 7.3).

The request can be accepted or refused by the MAC layer only, and it is always followed by

a positive or negative confirmation (CMD_RC_Confirm(Section 5.3.24)). If the node is set at

PHY layer, the command does not take any effect.

If the two listed parameters of the command are filled to zero, and the node is set as MAC

server:

●

TX_POS will be filled by ST7570 equal to node Local MAC Address (if the node is

NEW, it won’t take part to Repeater Call procedure);

●

RC_THRESHOLD value will be read by ST7570 from MIB object 000Ch (RC

Threshold, Section 6.5.13).

Table 60.

CMD_RC_Request: Syntax

Source

Command(Args)

Possible Response

Ext. Host

CMD_RC_Request(RequestData)

CMD_RC_Confirm(ConfirmData)

Table 61.

CMD_RC_Request: RequestData

Byte index

Label

Description

0..1

TX_POS

Transmitting position

2..3

RC_THRESHOLD

SNR threshold value (to be expressed in 100*dB

µV). A node set as

Server or Monitor will decide its Repeater Status after comparison

with this value.

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