Echelon I/O Model Reference for Smart Transceivers and Neuron Chips - Manual (Page 78)

68 Parallel I/O Models
Step Master Slave Comment
3 Read RESYNC
4 Write EOM End of message (EOM=0x00)
5 Process EOM
6 Write
ACKSYNC
Slave acknowledges resynching
(0x07)
7 Read
ACKSYNC
8 Write EOM
9 Process EOM Master owns token when reset
10 (Owns Token)
Table 25. Master Writes Buffer to Slave: R/W~=0
Step Master Slave Comment
1 (Owns Token)
2 Write XFER Master has data to write
(XFER=0x01)
3 Read XFER
4 Write (length) Length=number of bytes of data
5 Read (length)
6 Write (data_0) Master begins data transfer to slave
7 Read (data_0)
8 Repeat steps 6 and 7 length times
9 Write (data_n) Last byte of data to be transferred
10 Read (data_n)
11 Write EOM End of data transfer (EOM=0x00)
12 Process EOM Exchange token
13 (Owns Token)