Repeat Transmission Mode Flowchart - NEC PD78052 User Manual

Write transmit data
Set ADTP to the value (pointer
value) obtained by subtracting 1
from the number of transmit
Set the transmission/reception
operation interval time in ADTI
Write any data to SIO1
Write transmit data from
buffer RAM to SIO1
Transmission operation
Pointer value = 0
ADTP : Automatic data transmit/receive address pointer
ADTI
SIO1
426
CHAPTER 18 SERIAL INTERFACE CHANNEL 1
Figure 18-15. Repeat Transmission Mode Flowchart
Start
in buffer RAM
data bytes
(Start trigger)
No
Yes
Reset ADTP
: Automatic data transmit/receive interval specify register
: Serial I/O shift register 1
Decrement pointer value
Software Execution
Hardware Execution