Instruction Manual

DS692DB2 27

CDB8422

Switch S7 controls the remaining options for the CS8422 in hardware mode, see Table 5 for switch config-

urations. The NV/RERR (CS8422 pin 9) and V/AUDIO

(CS8422 pin 10) signals are provided at header J26

pins 5 and 2, respectively, and their states are indicated by LEDs D2 and D3. The TX/U (CS8422 pin 18)

signal is provided at pin 1 of J31. If the transmitter pass-through option is selected for this signal, the data

can be sent to the optical and coaxial output S/PDIF connectors by shunting the bottom two pins of J31.

Note: Position 6 also selects either the CS8422’s RMCK or MCLK_OUT signal to send to the SAO1 head-

er J24 and the CS8406’s OMCK pin.

POSITION LABEL PURPOSE SETTING FUNCTION SELECTED

1 RX_SELECT

Selects Active Receiver Input

Pins

0 RXP0/RXN0 Selected

1 RXP1/RXN1 Selected

2 TX_SELECT

Selects Receiver Input to be Out-

put to Transmitter Pass-through

0 RXP0/RXN0 Selected

1 RXP1/RXN1 Selected

TX_U/OUT

SEL

Selects Transmitter Pass-through

or U Data Output on Pin 18

0 Transmitter Pass-through Output

1 Incoming U Data Output

NV/RERR

SEL

Selects NV or RERR Output on

Pin 9

0 NVERR Output

1 RERR Output

5 V/AUDIO SEL

Selects Validity Data Output or

AUDIO

Indicator Output on Pin 10

0 Validity Data Output

1 AUDIO

Indicator Output

SRC MCK

SEL

Selects MCLK Source for Serial

Output Port 1

0XTI-XTO Selected

1 RMCK Selected

Table 5. S7 Settings