Cirrus Logic CDB8422 - Manual (Page 28)

28 DS692DB2
CDB8422
4. SYSTEM CONNECTIONS
CONNECTOR REF INPUT/OUTPUT SIGNAL PRESENT
+5V J2 Input +5 V Power Supply
GND J3 Input Ground Reference
USB I/O J37 Input/Output USB connection to PC for I²C or SPI control port signals
RX0
RX1
RX2
RX3 J1
J5
J10
J15
Input
Input
Input
Input CS8422 digital audio input via optical cable
RX0
RX1
RX2
RX3 J7
J6
J12
J16
Input
Input
Input
Input CS8422 digital audio input via coaxial cable
AES/EBU INPUT J19 Input CS8422 digital audio input via XLR cable
OPTICAL OUT J28 Output CS8406 digital audio output via optical cable
COAX OUT J27 Output CS8406 digital audio output via coaxial cable
Input Serial Port Header J22 Input/Output I/O for Clocks & Data to/from the CS8422’s input serial port
Output Serial Port 1
Header
J24 Input/Output I/O for Clocks & Data to/from the CS8422’s output serial port 1
Output Serial Port 2
Header
J25 Input/Output I/O for Clocks & Data to/from the CS8422’s output serial port 2
TDM Input Header J30 Input/Output I/O for Clocks & Data to/from the CS8422’s TDM input
SPI/I2C J26 Input/Output I/O for external I²C or SPI control port signals
C2 J36 Input/Output I/O for programming the micro controller (U46)
FPGA JTAG J69 Input/Output I/O for programming the FPGA (U58)
BOARD RESET S5 Input Reset for the CDB8422
FPGA PROGRAM S1 Input Reload Xilinx program into the FPGA from Flash (U57)
MS SEL S3 Input Selects master/slave mode and clock ratio settings for the serial
output ports of the CS8422 in hardware mode (see
Section 3.3 )
SAOF S4 Input Selects data format for the serial output ports of the CS8422 in
hardware mode (see
Section 3.3 )
HW CONFIG S7 Input Misc. control of the CS8422 in hardware mode (see Section 3.3 )
Table 6. System Connections