AC4490 User Guide
Version 4.5
Laird Connectivity Solutions Support Center:
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Probe
When the OEM Host issues this command, the transceiver sends out a query every 500 ms. The transceivers
randomly choose a query to respond to. After responding to a probe, the transceiver will wait at least 10
seconds before responding to another probe.
Note: This command can only be sent from a server radio.
Command: <0xCC> <0x8E> <Probe>
Number of Bytes Returned: 2
Response: <0xCC> <Probe>
Parameter Range:
<Probe> =
0x00: Disable Probe Mode
0x01: Enable Probe Mode
Transceiver’s Response
Upon hearing the remote transceiver’s probe acknowledge, the transceiver sends a response to the OEM Host.
Command: N/A
Number of Bytes Returned: 5
Response: <0xCC> <Data> <MAC3> <MAC2> <MAC1>
Parameter Range:
<Data> =
bit-7: 0 Client
bit-7: 1 Server
bits 6-0: RF Channel
EEPROM Byte Read
Upon receiving this command, a transceiver will respond with the desired data from the addresses requested
by the OEM Host. See
Command: <0xCC> <0xC0> <Start> <Length>
Number of Bytes Returned: 4+
Response: <0xCC> <Start> <Length> <Data>
Parameter Range:
<Start> =
Address to begin reading from
<Length> =
Length of bytes to read
<Data> =
Requested data
EEPROM Byte Write
Upon receiving this command, a transceiver will write the data byte to the specified address but will not echo
it back to the OEM Host until the EEPROM write cycle is complete (up to 10 ms).
Multiple byte writes of up to 128 bytes are allowed. An EEPROM boundary exists between addresses 0x7F
and 0x80. No single EEPROM write command shall write to addresses on both sides of that EEPROM
boundary. See
