AS3930
Datasheet - D e t a i l e d D e s c r i p t i o n
Figure 15. Send Direct COMMAND Byte
CS
SCLK
SDI
X
1
1
C5
C4
C3
C2
C1
C0
X
8.2.3
SDI Timing
Two leading
ONE indicate
COMMAND
Mode
SCLK rising
edge Data is
transfered from
μC
SCLK
falling edge
Data is
sampled
CS falling edge
signals the end of
COMMAND Mode
Table 13. SDI Timing Parameters
Symbol
TCSCLK
TDCLK
THCL
TCLK
TCLKCS
TCST
Parameter
Time CS to Sampling Data
Time Data to Sampling Data
SCLK High Time
SCLK period
Time Sampling Data to CS down
CS Toggling time
Min
500
300
200
1
500
500
Typ
Max
Units
ns
ns
ns
μs
ns
ns
Figure 16. SDI Timing Diagram
TCST
CS
SPI
SCLK
TCSCLK
TDCLK
THCL
TCLK
TCLKCS
t
t
t
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