LM3S102 Luminary Micro, Inc, LM3S102 Datasheet - Page 320

• Manufacturer Part Number: LM3S102
• Description: Lm3s102 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Electrical Characteristics
Table 18-10. 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 time I2CSCL or
c. Specified at a nominal 50 pF load.
Figure 18-2. I
320
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.
I2CSDA takes to reach a high level depends on external signal capacitance and pull-up resistor values.
No.
I8
I9
a
a
I2CSDA
I2CSCL
2
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 Timing
C Characteristics (Continued)
t
SCSR
t
SCS
I1
Parameter Name
Start condition setup time (for repeated
start condition only)
Stop condition setup time
I2
I4
Preliminary
2
C Master Timer Period (I2CMTPR) register (see page 281); a
I6
I7
Min
36
24
Nom
-
-
I5
I8
I3
Max
-
-
July 6, 2006
system
system
clocks
clocks
Unit