CDB53L21 datasheet(20/33 Pages) CIRRUS

20 / 33 page

DS700DB1

CDB53L21

5. SYSTEM CONNECTIONS AND JUMPERS

CONNECTOR

REF

INPUT/OUTPUT

SIGNAL PRESENT

+5V

J26

Input

+5.0 V Power Supply.

GND

J27

Input

Ground Reference .

RS232

J95

Input/Output

Serial connection to PC for SPI / I²C control port signals.

USB

J94

Input/Output

USB connection to PC for SPI / I²C control port signal.

S/PDIF OPTICAL

OUT

OPT2

Output

CS8406 digital audio output via optical cable.

S/PDIF COAX OUT

J68

Output

CS8406 digital audio output via coaxial cable.

I/O Header

Input/Output

I/O for Clocks & Data.

S/W CONTROL

J109

Input/Output

I/O for external SPI / I²C control port signals.

MICRO JTAG

J110

Input/Output

I/O for programming the micro controller (U84).

FPGA JTAG

J78

Input/Output

I/O for programming the FPGA (U14).

MICRO RESET

Input

Reset for the micro controller (U84).

FPGA PROGRAM

Input

Reload Xilinx Flash program into the FPGA (U14).

H/W BOARD RESET

Input

Reset for the CS53L21 (U1).

LINEB

LINEA

J62

Input

RCA phono jacks for analog input signal to CS53L21.

MIC1

MIC2

J35

J51

Input

Microphone jacks for analog input signal to CS53L21.

Table 3. System Connections

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