Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK 데이터 시트
제품 코드
AT91SAM9M10-G45-EK
560
SAM9M10 [DATASHEET]
6355F–ATARM–12-Mar-13
32.8.7
SMBUS Quick Command (Master Mode Only)
The TWI interface can perform a Quick Command:
1.
Configure the master mode (DADR, CKDIV, etc.).
2.
Write the MREAD bit in the TWI_MMR register at the value of the one-bit command to be sent.
3.
Start the transfer by setting the QUICK bit in the TWI_CR.
Figure 32-14.
SMBUS Quick Command
32.8.8
Read-write Flowcharts
,
,
and
ing 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.
register (TWI_IER) be configured first.
TXCOMP
TXRDY
Write QUICK command in TWI_CR
TWD
A
S
DADR
R/W
P