CS61884 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'CS61884' PDF : 72 Pages View PDF
CS61884
19.10 Switching Characteristics - Serial Port
Parameter
SDI to SCLK Setup Time
SCLK to SDI Hold Time
SCLK Low Time
SCLK High Time
SCLK Rise and Fall Time
CS to SCLK Setup Time
SCLK to CS Hold Time
CS Inactive Time
SDO Valid to SCLK
CS to SDO High Z
Note 23
Note 23
Symbol
tdc
tcdh
tcl
tch
tr, tf
tcc
tcch
tcwh
tcdv
tcdz
Min.
-
-
-
-
-
-
-
-
-
-
Typ.
20
20
50
50
15
20
20
70
60
50
Max
Unit
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
Notes: 23. If SPOL = 0, then CS should return high no sooner than 20 ns after the 16th rising edge of SCLK during
a serial port read.
CS
SCLK
SDI
SDO
CLKE=0
SDO
CLKE=1
LAST ADDR BIT
tcdv
tcdv
D0
D1
D6
D0
D1
D6
Figure 24. Serial Port Read Timing Diagram
D7
D7
tcdz
HIGH Z
CS
tcc tch
tcl
SCLK
tdc
SDI
LSB
tcdh
LSB
tcdh
tcwh
tcch
MSB
Figure 25. Serial Port Write Timing Diagram
DS485PP4
61
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