SPI Bus/MICROWIRE-Interface Timing Characteristics
Figure 6: MICROWIRE Interface Timing Diagram
DB31
DB30
t1
t2
DB2
DB1
t3
t4
DB0
DATA
CLOCK
CS
t5
t6
Parameter Limit at tmin to tmax Units
Test Conditions/Comments
t1
100
ns min DATA to CLOCK setup time
t2
100
ns min DATA to CLOCK hold time
t3
250
ns min CLOCK high time
t4
250
ns min CLOCK low time
t5
100
ns min CLOCK to CS setup time
t6
200
ns min CS pulse width (applies to MICROWIRE Interface only)
t7
200
ns min CS to CLOCK setup time (applies to SPI BUS only)
Figure 7: SPI BUS Timing Diagram
DB31
DB30
t1
t2
t7
DB2
DB1
t3
t4
DB0
DATA
CLOCK
CS
t5