LM3S1651 Datasheet, PDF (741/1033 Pages) Texas Instruments – ARM and Thumb are registered trademarks and Cortex is a trademark

Stellaris^® LM3S1651 Microcontroller
Table 15-5. Write Field Decoding for I2CMCS[3:0] Field (continued)
Current ^I2CMSA[0]
State
R/S
ACK
I2CMCS[3:0]
STOP START
Description
RUN
X
0
0
0
1 RECEIVE operation with negative ACK (master remains
in Master Receive state).
X
X
1
0
0 STOP condition (master goes to Idle state).^b
X
0
1
0
1 RECEIVE followed by STOP condition (master goes to
Idle state).
X
1
0
0
1 RECEIVE operation (master remains in Master Receive
state).
X
1
1
0
1 Illegal.
1
Master
Receive
0
0
1
1 Repeated START condition followed by RECEIVE
operation with a negative ACK (master remains in Master
Receive state).
1
0
1
1
1 Repeated START condition followed by RECEIVE and
STOP condition (master goes to Idle state).
1
1
0
1
1 Repeated START condition followed by RECEIVE
(master remains in Master Receive state).
0
X
0
1
1 Repeated START condition followed by TRANSMIT
(master goes to Master Transmit state).
0
X
1
1
1 Repeated START condition followed by TRANSMIT and
STOP condition (master goes to Idle state).
All other combinations not listed are non-operations. NOP.
a. An X in a table cell indicates the bit can be 0 or 1.
b. In Master Receive mode, a STOP condition should be generated only after a Data Negative Acknowledge executed by
the master or an Address Negative Acknowledge executed by the slave.
January 21, 2012
741
Texas Instruments-Production Data