CS61584A Cirrus Logic, Inc., CS61584A Datasheet - Page 10

• Manufacturer Part Number: CS61584A
• Description: Dual T1/e1 Line Interface
• Manufacturer: Cirrus Logic, Inc.

10
SWITCHING CHARACTERISTICS - SERIAL PORT
nominal ± 0.3 V; Inputs: Logic 0 = 0 V, Logic 1 = RV+)
Notes: 28. If SPOL = 0, then CS should return high no sooner than 20 ns after the 16
10
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
29. Output load capacitance = 50 pF.
a serial port read.
SPOL = 0
SCLK
SCLK
SDI
SDO
CS
CS
Parameter
t
LSB
dc
t
cc
CONTROL BYTE
t
ch
Figure 4. Serial Port Write Timing Diagram
t
Figure 5. Serial Port Read Timing Diagram
cdv
t
cdh
t
cl
DS261PP5
(Note 28)
(Note 29)
LSB
DATA BYTE
Symbol
t
t
t
t
t
t
t
cwh
t
cdh
t
r
cch
cdv
cdz
t
dc
ch
, t
cc
cl
f
(T
t
A
cdh
Min
100
= -40 to 85 °C; DV+, TV+, RV+ =
25
25
50
50
20
20
-
-
-
MSB
t
th
cch
rising edge of SCLK during
Typ
50
-
-
-
-
-
-
-
-
-
t
cwh
t
cdz
CS61584A
CS61584A
Max
HIGH
15
50
-
-
-
-
-
-
-
-
DS261PP5
DS261F1
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns