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LM3S8971 Datasheet, PDF (544/577 Pages) List of Unclassifed Manufacturers – Microcontroller
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Electrical Characteristics
23.2.7
Synchronous Serial Interface (SSI)
Table 23-22. SSI Characteristics
Parameter No. Parameter Parameter Name
Min Nom Max
Unit
S1
tclk_per SSIClk cycle time
2 - 65024 system clocks
S2
tclk_high SSIClk high time
- 1/2 -
t clk_per
S3
tclk_low SSIClk low time
- 1/2 -
t clk_per
S4
tclkrf SSIClk rise/fall time
- 7.4 26
ns
S5
tDMd Data from master valid delay time 0 - 20
ns
S6
tDMs Data from master setup time
20 -
-
ns
S7
tDMh Data from master hold time
40 -
-
ns
S8
tDSs Data from slave setup time
20 -
-
ns
S9
tDSh Data from slave hold time
40 -
-
ns
Figure 23-4. 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 23-5. 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
544
October 01, 2007
Preliminary
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