Datasheet

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SAM9261 [DATASHEET]

Atmel-6062O-ATARM-SAM9261-Datasheet_21-Jun-16

30.10.6 Read Write Flowcharts

The flowchart shown in Figure 30-32 gives an example of read and write operations in Slave mode. A polling or

interrupt method can be used to check the status bits. The interrupt method requires that the interrupt enable

Figure 30-32. Read Write Flowchart in Slave Mode

Set the SLAVE mode:

SADR + MSDIS + SVEN

SVACC = 1 ?

TXCOMP = 1 ?

GACC = 1 ?

Decoding of the

programming sequence

Prog seq

OK ?

Change SADR

SVREAD = 0 ?

Read Status Register

RXRDY= 0 ?

Read TWI_RHR

TXRDY= 1 ?

EOSACC = 1 ?

Write in TWI_THR

END

GENERAL CALL TREATMENT