Repeat Transmission Mode Flowchart - NEC 78K0 User Manual

8-bit single-chip microcontrollers

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Write transmit data

in internal buffer RAM

Set ADTP0 to the value

(point value) obtained

by subtracting 1 from

the number of transmit data bytes

transmission mode

Write transmit data from

internal buffer RAM to SIOA0

Transmission operation

CHAPTER 17 SERIAL INTERFACE CSIA0

Figure 17-20. Repeat Transmission Mode Flowchart

Set the repeat

Set ATSTA0 to 1

ADTP0 = ADTC0

Reset ADTC0 to 0

Automatic data transfer address point specification register 0

Automatic data transfer interval specification register 0

Bit 0 of serial trigger register 0 (CSIT0)

Serial I/O shift register 0

Automatic data transfer address count register 0

User's Manual U15947EJ2V0UD

Increment pointer value

Software execution

Hardware execution

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