UM0934 Datasheet, PDF (61/113 Pages) STMicroelectronics – ST7570 S-FSK power line networking System-on-Chip

UM0934
Host interface
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.
Table 60. CMD_RC_Request: Syntax
Source
Command(Args)
Ext. Host
CMD_RC_Request(RequestData)
Possible Response
CMD_RC_Confirm(ConfirmData)
Table 61. CMD_RC_Request: RequestData
Byte index
Label
Description
0..1
TX_POS
Transmitting position
SNR threshold value (to be expressed in 100*dBµV). A node set as
2..3 RC_THRESHOLD Server or Monitor will decide its Repeater Status after comparison
with this value.
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).
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