LM3S2016 Datasheet, PDF (438/468 Pages) List of Unclassifed Manufacturers – Microcontroller

Electrical Characteristics
period. The actual position is affected by the value programmed into the TPR; however, the numbers given in the above
values are minimum values.
b. Because I2CSCL and I2CSDA are open-drain-type outputs, which the controller can only actively drive Low, the time
I2CSCL or I2CSDA takes to reach a high level depends on external signal capacitance and pull-up resistor values.
c. Specified at a nominal 50 pF load.
Figure 19-2. I²C Timing
I2
I6
I5
I2CSCL
I1
I4
I7
I8 I3
I9
I2CSDA
19.2.5
Synchronous Serial Interface (SSI)
Table 19-11. SSI Characteristics
Parameter No. Parameter Parameter Name
Min Nom Max
Unit
S1
t_{clk_per} SSIClk cycle time
2 - 65024 system clocks
S2
t_{clk_high} SSIClk high time
- 1/2 -
t clk_per
S3
t_{clk_low} SSIClk low time
- 1/2 -
t clk_per
S4
t_clkrf SSIClk rise/fall time
- 7.4 26
ns
S5
t_DMd Data from master valid delay time 0 - 20
ns
S6
t_DMs Data from master setup time
20 -
-
ns
S7
t_DMh Data from master hold time
40 -
-
ns
S8
t_DSs Data from slave setup time
20 -
-
ns
S9
t_DSh Data from slave hold time
40 -
-
ns
Figure 19-3. SSI Timing for TI Frame Format (FRF=01), Single Transfer Timing Measurement
S1
S2
S4
SSIClk
S3
SSIFss
SSITx
SSIRx
MSB
4 to 16 bits
LSB
438
November 30, 2007
Preliminary