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H3 Datasheet(Revision1.2) Copyright© 2015 Allwinner Technology Co.,Ltd.All Rights Reserved. Page 211

4.13.2.1. Typical Applications

Typical Application Flow Chart

Set a MSG Queue as a

Transmitter or a receiver?

START

FINISH

Check the MSG status or

FIFO status if it is not full?

Write a message to

the MSG REG

As a transmitter As a receiver

Enable the

RECEPTION IRQ

A new message has

received?

Read the MSG REG

to fetch the message

FINISH

Clear the Reception

IRQ Pending

Y

Y

N

N

IF the Message Queue

FIFO is empty?

Y

N

Figure 4-7. Message Box Typical Application Chart

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