Datasheet

Other master continues
S SLA/R
A DATA
A
P
1) UCTR=0 (Receiver)
2) UCTXSTT=1
Successful
reception from a
slave transmitter
UCBxRXIFG=1
DATADATA
A
UCTXSTP=1
Next transfer started
with a repeated start
condition
DATA
S SLA/W
1) UCTR=1 (Transmitter)
2) UCTXSTT=1
DATA
S SLA/R
1) UCTR=0 (Receiver)
2) UCTXSTT=1
Not acknowledge
received after slave
address
UCTXSTT=0
UCNACKIFG=1
P
S SLA/W
S SLA/R
1) UCTR=1 (Transmitter)
2) UCTXSTT=1
1) UCTR=0 (Receiver)
2) UCTXSTT=1
Arbitration lost in
slave address or
data byte
A
Other master continues
UCALIFG=1
UCMST=0
(UCSTTIFG=0)
Arbitration lost and
addressed as slave
Other master continues
A
UCALIFG=1
UCMST=0
UCTR=1 (Transmitter)
UCSTTIFG=1
UCBxTXIFG=1
UCSTPIFG=0
USCI continues as Slave Transmitter
A
A
A
UCTXSTT=0 UCTXSTP=0
UCBxTXIFG=1
UCALIFG=1
UCMST=0
(UCSTTIFG=0)
UCTXSTP=1
UCTXSTP=0
USCI Operation: I
2
C Mode www.ti.com
Figure 17-13. I
2
C Master Receiver Mode
462
SLAU144J–December 2004–Revised July 2013
Universal Serial Communication Interface, I
2
C Mode
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