at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 246

• Manufacturer Part Number: at32uc3b0512-z2ues
• Description: 32-bit Avr Microcontroller
• Manufacturer: ATMEL Corporation

Notes:
19.13.8
Figure 19-31. Read Write Flowchart in Slave Mode
32059J–12/2010
1. In this case, if THR has not been written at the end of the read command, the clock is automatically stretched before the
2. TXCOMP is only set at the end of the transmission because after the repeated start, SADR is detected again.
Read Write Flowcharts
ACK.
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 (IER) be configured first.
GACC = 1 ?
Figure 19-31 on page 246
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 ?
AT32UC3B
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