Operation Flow Chart
Start
Status register set
SRU write
SRL write
CS=“L” to “H”
(Serial communication)
Status read
NO
Busy flag =“0”
YES
NO
Acknowledge =“0”
YES
Serial input data read
MITSUBISHI 〈DIGITAL ASSP〉
M66011FP
SERIAL BUS CONTROLLER
Start
Status register set
SRU write
SRL write
CS=“L” to “H”
(Serial communication start)
(Serial communication end)
Interrupt command output
Status read
NO
Acknowledge =“0”
YES
Serial input data read
Communication trouble
END
When Busy Flag Is Used
Communication trouble
END
When INT Output Is Used
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