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CS4970X4 Datasheet(PDF) 16 Page - Cirrus Logic

Part No. CS4970X4
Description  32-bit High Definition Audio Decoder DSP Family
Download  36 Pages
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Maker  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
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CS4970X4 Datasheet(HTML) 16 Page - Cirrus Logic

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Copyright 2008 Cirrus Logic
DS752PP7
CS4970x4 Data Sheet
32-bit High Definition Audio Decoder DSP Family
Figure 5. Serial Control Port - I2C Slave Mode Timing
5.12 Switching Characteristics — Serial Control Port - I2C Master Mode
Parameter
Symbol
Min
Max
Units
SCP_CLK frequency
1
1. The specification fiicck 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.
fiicck
-
400
kHz
SCP_CLK low time
tiicckl
1.25
-
µs
SCP_CLK high time
tiicckh
1.25
-
µs
SCP_SCK rising to SCP_SDA rising or falling for START or STOP
condition
tiicckcmd
1.25
µs
START condition to SCP_CLK falling
tiicstscl
1.25
-
µs
SCP_CLK falling to STOP condition
tiicstp
2.5
-
µs
Bus free time between STOP and START conditions
tiicbft
3-
µs
Setup time SCP_SDA input valid to SCP_CLK rising
tiicsu
100
ns
Hold time SCP_SDA input after SCP_CLK falling
tiich
20
-
ns
SCP_CLK low to SCP_SDA out valid
tiicdov
-18
ns
SCP_BSY#
SCP_CLK
SCP_SDA
SCP_IRQ#
0
1
67
80
1
7
tiicckl
tiicckh
tiicsu
tiich
A6
A0
R/W
ACK
LSB
tiicirqh
tiicirql
8
ACK
MSB
tiicstp
6
tiiccbsyl
tiicdov
tiicbft
tiicstscl
tiicckcmd
fiicck
tiicckcmd
tiicf
tiicr


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