Denso BHT-6000 - Manual (Page 126)

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Chapter 3. Communications Operations of BHT-6000
■ Phase 2 with suspension of data reception for erasure of the flash ROM
If the receiving BHT-6000 requires the flash ROM to be erased for receiving
downloaded files, it sends a sequence of WACK and IDs to the sending station to
suspend the data transmission.
Upon receipt of the sequence of WACK and IDs, the sending station stops the data
transmission until any response comes from the receiving station for one minute.
If no response comes within one minute, the sending station sends a sequence of
DLE EOT and IDs and then aborts the current transmission.
Heading text
WACK and IDs
DLE ACK and IDs
Data text #1
DLE ACK and IDs
Start of erasure
End of erasure
Sending
station Receiving
station