UM0934 Datasheet, PDF (56/113 Pages) STMicroelectronics – ST7570 S-FSK power line networking System-on-Chip

Host interface
UM0934
Table 45. CMD_AlarmIndication: Data (PHY or MAC mode)
Byte index
Label
Description
0..3
CNT Alarms received counter.
If a long alarm indication is selected:
4..6
S0 Amplitude estimation of channel 0 signal.
7..9
10..12
N0 Amplitude estimation of channel 0 noise.
S1 Amplitude estimation of channel 1 signal.
13..15
N1 Amplitude estimation of channel 1 noise.
16
PAD Padding byte.
5.3.15
CMD_AlarmRequest (88h)
This command exports the following services to the external host:
● PHY mode: P_Alarm.Request
● MAC mode: M_Alarm.Request.
This command is sent by the external host to request the transmission of an alarm.
A positive or negative confirmation (CMD_AlarmConfirm) follows this request; if accepted,
the request is accomplished in the next alarm slot.
Table 46.
Source
Ext. Host
CMD_AlarmRequest: Syntax
Command(Args)
CMD_AlarmRequest(none)
Possible response
CMD_AlarmConfirm(Data)
5.3.16
CMD_AlarmConfirm (89h)
This command exports the following services to the external host:
● PHY mode: P_Alarm.Confirm
● MAC mode: M_Alarm.Confirm.
This command is sent by the ST7570 to confirm an alarm request.
The data field is a 1-byte field containing the result of the previous request.
Table 47. CMD_AlarmConfirm: Syntax
Source
Command(Args)
ST7570
CMD_AlarmConfirm(Data)
Possible response
None
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