LM3S316 Luminary Micro, Inc., LM3S316 Datasheet - Page 406
LM3S316
Manufacturer Part Number
LM3S316
Description
Microcontroller
Manufacturer
Luminary Micro, Inc.
Datasheet
1.LM3S316.pdf
(421 pages)
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Electrical Characteristics
20.2.6
Table 20-12. I
a. Values depend on the value programmed into the TPR bit in the I
b. Because I2CSCL and I2CSDA are open-drain-type outputs, which the controller can only actively drive Low, the
c. Specified at a nominal 50 pF load.
Figure 20-2. I
406
Parameter
TPR programmed for the maximum I2CSCL frequency (TPR=0x2) results in a minimum output timing as shown in the table
above. The I
The actual position is affected by the value programmed into the TPR; however, the numbers given in the above values are
minimum values.
time I2CSCL or I2CSDA takes to reach a high level depends on external signal capacitance and pull-up resistor
values.
No.
I1
I2
I3
I4
I5
I6
I7
I8
I9
a
a
b
a
a
a
a
a
c
I2CSDA
I2CSCL
I
2
2
C
C interface is designed to scale the actual data transition time to move it to the middle of the I2CSCL Low period.
2
2
Parameter
C Characteristics
C Timing
t
t
t
SCSR
t
t
t
SCH
t
t
SCS
t
SRT
SFT
DH
DS
LP
HT
I1
Parameter Name
Start condition hold time
Clock Low period
I2CSCL/I2CSDA rise time
(V
Data hold time
I2CSCL/I2CSDA fall time
(V
Clock High time
Data setup time
Start condition setup time (for repeated
start condition only)
Stop condition setup time
IL
IH
=0.5 V to V
=2.4 V to V
I2
IH
IL
=2.4 V)
=0.5 V)
I4
Preliminary
2
C Master Timer Period (I2CMTPR) register (see page 331); a
I6
I7
Min
36
36
24
18
36
24
2
-
-
Nom
9
-
-
-
-
-
-
-
-
I5
I8
note b)
I3
Max
(see
10
-
-
-
-
-
-
-
April 27, 2007
system
system
system
system
system
system
system
clocks
clocks
clocks
clocks
clocks
clocks
clocks
Unit
ns
ns
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