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CHAPTER 17 SERIAL INTERFACE CHANNEL 1
Figure 17-14. Repeat Transmit Mode Flowchart
Start
Write transmit data
in buffer RAM
Set ADTP to the value (pointer
value) obtained by subtracting 1
from the number of transmit
data bytes
Write any data to SIO1
(Start trigger)
Write transmit data from buffer
RAM to SIO1
Transmission operation
Pointer value = 0
Yes
Reset ADTP
ADTP : Automatic data transmit/receive address pointer
SIO1 : Serial I/O shift register 1
Decrement pointer value
No
Software Execution
Hardware Execution
435
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