AMIS-49587 Datasheet, PDF (36/59 Pages) ON Semiconductor – Power Line Carrier Modem

AMIS−49587
Repeater
Description: This request is used to modify the repeater state of the AMIS−49587. The repeater state can be Repeater, No
Repeater, Repeater Isacall or No Repeater Isacall. Only the 2 last bits are used for this command, so the value is in the field
00 to 03.
Request Format :
<STX> Length
41h
0B00h
Repeater State (1 byte)
CHK
Confirm Format:
<STX> Length
42h
0B00h
Repeater State (1 byte)
CHK
Frequency
Description: This request is used to modify the values of the frequencies Fs and Fm used for the PLC communication. See
calculation method Sine Wave Generator on Page 13.
Request Format:
<STX> Length
41h
0C00h
Fs (2 bytes), Fm (2 bytes)
CHK
Confirm Format:
<STX> Length
42h
0C00h
Fs (2 bytes), Fm (2 bytes)
CHK
Data Counters
Description: This request is used to read the value of the data counters in the AMIS−49587. It contains one byte which is used
to know whether the counters must be reset or not (00: no reset, 01: reset)
There are 6 counters coded on 4 bytes each, which indicates:
− Number of CRC OK frames received
− Number of CRC not OK frames received
− Number of repeated frames
− Number of transmitted frames
− Number of corrected frames (with option Pad Correcting)
− Number of frames with bad Frame Indicator received
Request Format :
<STX> Length 41h 0D00h
Request Counters (1 byte) + Pad (0 to 19
bytes)
CHK
Confirm Format :
<STX> Length 42h 0D00h
CRC_OK (4 bytes), CRC_NOK (4 bytes),
Rep_Frames (4 bytes), Tr_Frames (4 bytes),
Corr_Frames (4 bytes), FI_NOK (4 bytes)
CHK
PhyAlarmRequest
Description: This request is used to send a physical alarm pattern. No data is transmitted to indicate the number of repetitions,
the FPMA already knows this number because it is in its config.
Request Format:
<STX> Length 41h
0F00h
Pad (0 to 1 byte)
CHK
Confirm Format:
<STX> Length 42h
0F00h Number of alarm Transmissions (1 byte) CHK
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