LM3S5G31 Datasheet, PDF (1164/1223 Pages) Texas Instruments – Stellaris LM3S5G31 Microcontroller

Electrical Characteristics
Table 25-29. SSI Characteristics (continued)
Parameter
No.
Parameter Parameter Name
Min Nom Max
Unit
S8
T_DSS
Data from slave setup time
1
-
-
system clocks
S9
T_DSH
Data from slave hold time
2
-
-
system clocks
a. In master mode, the system clock must be at least twice as fast as the SSIClk; in slave mode, the system clock must be
at least 12 times faster than the SSIClk.
b. Note that the delays shown are using 8-mA drive strength.
Figure 25-23. 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
Figure 25-24. SSI Timing for MICROWIRE Frame Format (FRF=10), Single Transfer
S2
S1
SSIClk
S3
SSIFss
SSITx
SSIRx
MSB
8-bit control
LSB
0 MSB
LSB
4 to 16 bits output data
1164
Texas Instruments-Production Data
July 03, 2014