Yamaha V9938 Programmer's Manual page 80

Flowchart of LMCM execution from CPU point of view
LMCM Start
Set up VDP registers*
Execute command
Read status register #2
No (TR=0)
Transmit
ready?
Yes (TR=1)
Read status register S#7
Command
end?
No (CE=1)
Yes (CE=0)
LMMC End
*TR must be cleared before command execution
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