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Figure 15.8 hirq flowchart (example of channel 1) – Renesas H8S/2111B User Manual

Page 444

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Rev. 1.00, 05/04, page 410 of 544

Slave CPU

Master CPU

ODR1 write

Write 1 to IRQ1E1

OBF1 = 0?

Yes

No

No

Yes

All bytes

transferred?

SERIRQ IRQ1 output

SERIRQ IRQ1

source clearance

Interrupt initiation

ODR1 read

Hardware operation

Software operation

Figure 15.8 HIRQ Flowchart (Example of Channel 1)

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