Instruction Manual

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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

J10

J15

Input

CS8422 digital audio input via optical cable

RX0

RX1

RX2

RX3

J12

J16

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