AMIS-49587 Datasheet, PDF (30/59 Pages) ON Semiconductor – Power Line Carrier Modem

AMIS−49587
RESET AND SYNCHRO COMMANDS
Description
The reset command is used to replace the AMIS−49587 in the Not Set mode. The synchro commands are sent by the
AMIS−49587 to the Base Micro to indicate the changes in the synchronization state of the AMIS−49587.
Synchro_Indication (Tag 10h)
Description: The Synchro_Indication is sent by the AMIS−49587 in order to indicate that something has changed in the
synchronization state. The field Synchro_Data contains the change reason (see Section Synchronization State Codes) and data
corresponding with this change.
Syntax:
Initiator
AMIS−49587
Master/Slave
Command (arguments)
Synchro_Indication (Synchro_Data)
Possible Response
Frame Format:
<STX>
Length
<Synchro_Indication>
Synchro_Data
CHK
Table 34. GENERAL DESCRIPTION OF SYNCHRO_INDICATION
Change Reason Field
Length and Synchro_data description
Synchronisation Found (01h)
1 byte: Pad
2 bytes: Signal S0
2 bytes: Noise N0
2 bytes: Signal S1
2 bytes: Noise N1
2 bytes: ASK Threshold or FSK factor
1 byte : Method
1 byte : Synchro−Bit and Gain values
Synchronisation Confirmed (02h)
1 byte: Pad
2 bytes: Source MAC Address
2 bytes: Destination MAC Address
Synchronisation Lost (04h)
Time−out not addressed has expired
(01h)
2 bytes: Local MAC Add
2 bytes: Initiator MAC Add
Time−out frame not OK has expired
(02h)
2 bytes: Local MAC Add
2 bytes: Initiator MAC Add
Time−out synchro confirm has expired
(03h)
2 bytes: Local MAC Add
2 bytes: Initiator MAC Add
Addressed by a wrong initiator
(04h)
2 bytes: Source MAC Add
2 bytes: Dest. MAC Add
External desynchro command
(05h)
2 bytes: Local MAC Add
2 bytes: Initiator MAC Add
Search Initiator active
(06h)
2 bytes: Last initiator MAC Address received
2 bytes: Current initiator MAC Address choice
Remark
See Table 8: Description of the
SpyData field for more details
Slave mode
Master and Slave mode
Master and Slave mode
Slave mode
Master and Slave mode
Slave mode
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