Datasheet

569
SAM9M10 [DATASHEET]
6355FATARM12-Mar-13
Figure 32-23. Multi-master Flowchart
Programm 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
Need to perform
a master access
Program the Master mode
DADR + SVDIS + MSEN + CLK + R / W
Read Status Register
ARBLST = 1
MREAD = 1
TXRDY= 0
Write in TWI_THR
Data to send
RXRDY= 0
Read TWI_RHR
Data to read
Read Status Register
TXCOMP = 0
GENERAL CALL TREATMENT
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Stop Transfer
TWI_CR = STOP
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
START