LM3S1138 Luminary Micro, Inc, LM3S1138 Datasheet - Page 393

• Manufacturer Part Number: LM3S1138
• Description: Lm3s1138 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

July 26, 2008
Bit/Field
1
0
Table 15-3. Write Field Decoding for I2CMCS[3:0] Field (Sheet 1 of 3)
Current
State
Idle
Master
Transmit
START
Name
RUN
I2CMSA[0]
All other combinations not listed are non-operations.
All other combinations not listed are non-operations.
R/S
X
X
X
0
0
1
1
1
1
0
0
1
1
1
1
ACK
X
X
0
0
1
1
X
X
X
X
X
0
0
1
1
Type
a
WO
WO
STOP
I2CMCS[3:0]
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
Reset
0
0
START
Preliminary
1
1
1
1
1
1
0
0
0
1
1
1
1
1
1
Description
Generate START
When set, causes the generation of a START or repeated START
condition. See field decoding in Table 15-3 on page 393.
I
When set, allows the master to send or receive data. See field decoding
in Table 15-3 on page 393.
2
C Master Enable
1
1
1
1
1
RUN
1
1
0
1
1
1
1
1
1
1
Description
START condition followed by SEND (master goes to the
Master Transmit state).
START condition followed by a SEND and STOP
condition (master remains in Idle state).
START condition followed by RECEIVE operation with
negative ACK (master goes to the Master Receive state).
START condition followed by RECEIVE and STOP
condition (master remains in Idle state).
START condition followed by RECEIVE (master goes to
the Master Receive state).
Illegal.
NOP.
SEND operation (master remains in Master Transmit
state).
STOP condition (master goes to Idle state).
SEND followed by STOP condition (master goes to Idle
state).
Repeated START condition followed by a SEND (master
remains in Master Transmit state).
Repeated START condition followed by SEND and STOP
condition (master goes to Idle state).
Repeated START condition followed by a RECEIVE
operation with a negative ACK (master goes to Master
Receive state).
Repeated START condition followed by a SEND and
STOP condition (master goes to Idle state).
Repeated START condition followed by RECEIVE (master
goes to Master Receive state).
Illegal.
NOP.
LM3S1138 Microcontroller
393