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CS497014 Datasheet(PDF) 14 Page - Cirrus Logic

Part No. CS497014
Description  High Definition Audio Decoder DSP Family with Dual 32-bit Engine Technology
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Maker  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
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CS497014 Datasheet(HTML) 14 Page - Cirrus Logic

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CS4970x4 Data Sheet
32-bit High Definition Audio Decoder DSP Family
DS752F1
14
5.10 Switching Characteristics — Serial Control Port - SPI Master Mode
.
Figure 4. Serial Control Port - SPI Master Mode Timing
Parameter
Symbol
Min
Typical
Max
Units
SCP_CLK frequency1, 2
1. The specification fspisck indicates the maximum speed of the hardware. The system designer should be aware that the actual
maximum speed of the communication port may be limited by the firmware application.
2. See Section 5.7.
3. SCP_CLK PERIOD refers to the period of SCP_CLK as being used in a given application. It does not refer to a tested parameter.
fspisck
——
Fxtal/2
MHz
SCP_CS falling to SCP_CLK rising 3
tspicss
11*DCLKP +
(SCP_CLK PERIOD)/2
—ns
SCP_CLK low time
tspickl
16.9
ns
SCP_CLK high time
tspickh
16.9
ns
Setup time SCP_MISO input
tspidsu
11
ns
Hold time SCP_MISO input
tspidh
5—
ns
SCP_CLK low to SCP_MOSI output valid
tspidov
——
11
ns
SCP_CLK low to SCP_CS falling
tspicsl
7—
ns
SCP_CLK low to SCP_CS rising
tspicsh
11*DCLKP +
(SCP_CLK PERIOD)/2
—ns
Bus free time between active SCP_CS
tspicsx
3*DCLKP
ns
SCP_CLK falling to SCP_MOSI output high-Z
tspidz
20
ns
EE_CS#
SCP_CLK
SCP_MISO
SCP_MOSI
0
12
67
0
56
7
tspicss
tspickl
tspickh
tspidsu
tspidh
tspidov
A6
A5
A0
R/W
MSB
LSB
MSB
LSB
tspicsh
tspicsx
fspisck
tspidz
tspicsl


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