at91sam9260-cj ATMEL Corporation, at91sam9260-cj Datasheet - Page 410

• Manufacturer Part Number: at91sam9260-cj
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

31.9.6
Figure 31-31. Read Write Flowchart in Slave Mode
410
AT91SAM9260
Read Write Flowcharts
SADR + MSDIS + SVEN
Set the SLAVE mode:
Read Status Register
EOSACC = 1 ?
TXCOMP = 1 ?
SVACC = 1 ?
END
The flowchart shown in
in Slave mode. A polling or interrupt method can be used to check the status bits. The interrupt
method requires that the interrupt enable register (TWI_IER) be configured first.
GACC = 1 ?
Figure 31-31 on page 410
programming sequence
Read TWI_RHR
SVREAD = 0 ?
RXRDY= 0 ?
Decoding of the
Change SADR
Prog seq
OK ?
gives an example of read and write operations
GENERAL CALL TREATMENT
Write in TWI_THR
TXRDY= 1 ?
6221G–ATARM–31-Jan-08