Filter
Top Products
15-July-2004
5
d) Data transmitted by master (data error process)
MasterSlave
ENQ code (05H)
1)
ACK code (06H)
2)
3)
Send data (error occurs)
ACK code (06H)
Send data (error occurs)
Send data (data normal)
4)
3 seconds elaps
e
3 seconds elapse
5)
6)
1) Session starts when ENQ is sent from master to slave.
2) Slave acknowledges by returning ACK to master.
3) Master sends data, but error detected (framing, over-run error).
4) Slave detects error and does not accept data.
5) Sequence 3 and 4 repeats, then master transfers normal data.
6) Slave detects normal data and returns ACK code to master to end the session.