Cirrus-logic CS4970x4 Manual de usuario Pagina 38

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DS810UM6 Copyright 2013 Cirrus Logic P-27
CS4953x4 Pin Assignments
CS4953x4/CS4970x4 System Designer’s Guide
§§
1
138 30 DAI1_LRCLK
PCM Audio Input Sample
Rate (Left/Right) Clock
DSD4 DSD Audio Input Data 4
3.3V (5V
tol)
In Y
139 31 GNDIO8 I/O ground 0V PWR
140 - GPIO42
General Purpose Input/
Output
1. DAI2_LRCLK
2. BDI_REQ
3. PCP_IRQ
4. PCP_BSY
1.PCM Audio Input Sample Rate
Clock
2. Bursty Data Input Request
3. Parallel Control Port Data Ready
Interrupt Request
4. Parallel Control Port Input Busy
3.3V (5V
tol)
BiDir/OD IN Y
-32GPIO42
General Purpose Input/
Output
1. DAI2_LRCLK
2. BDI_REQ
1.PCM Audio Input Sample Rate
Clock
2. Bursty Data Input Request
3.3V (5V
tol)
BiDir/OD IN Y
141 33 GPIO43
General Purpose Input/
Output
1. DAI2_SCLK
2. BDI_CLK
1.PCM Audio Input Bit Clock
2. Bursty Data Input Bit Clock
3.3V (5V
tol)
BiDir IN Y
142 34 DAI2_DATA PCM Audio Input Data
1. DAI1_DATA4
2. DSD5
3. BDI_DATA
1. PCM Audio Input Data 4
2. DSD Audio Input Data 5
3. Bursty Data Input Data
3.3V (5V
tol)
In Y
143 - GPIO27
General Purpose Input/
Output
3.3V (5V
tol)
BiDir IN Y
144 - GPIO26
General Purpose Input/
Output
3.3V (5V
tol)
BiDir IN Y
-35GPIO26
General Purpose Input/
Output
1. DAO2_DATA3
2. XMTB
3. UART_TX_ENABLE
1. Digital Audio Output 3.
2. Outputs IEC60958/61937 format bi-
phase mark encoded S/PDIF data
3. Enable the UART_TX pin
3.3V (5V
tol)
BiDir IN Y
1. The “§§” symbol is used throughout this manual to indicate the end of the text flow in a chapter.
Table P-11. CS4953x4 Pin Assignments (Continued) for 144-Pin and 128-Pin Packages (Continued)
LQFP-
144
Pin #
LQFP-
128
Pin #
Function 1
(Default)
Description of Default
Function
Secondary Functions Description of Secondary
Functions
Pwr Type
Reset
State
Pullup
at
Reset
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