Table of Contents
Advertisement
Figure 19.10-3 Communication Flowchart for Mode 2 Operation
(Host CPU)
Start
Set the transfer mode to "3"
Set the slave CPU selection
in D0 to D7. Set D8 to "1".
Transfer the byte.
Set D8 to "0" and perform
communications
End
CHAPTER 19 UART0, UART1
(Slave CPU)
Start
Set the transfer mode to "2"
Receive a byte
NO
Selected?
YES
Set the transfer mode to "3"
and enable SOT0 output
Perform communications
with the master CPU
Use the status flag to
confirm transfer completion,
then set the transfer mode to
"2" and disable SOT0 output
335
Advertisement
Table of Contents
