Cirrus Logic CDB42L51 - Manual (Page 17)

DS679DB2 17
CDB42L51
3.2 CS42L51 H/W Control
The stand-alone “CS42L51 H/W Control” switch controls the Hardware Mode options of the CS42L51. A
description of each switch is outlined in the following table:
4. SYSTEM CONNECTIONS AND JUMPERS
Switch Position Function
M/S
LO LRCK and SCLK are inputs to CS42L51
HI LRCK and SCLK are outputs to CS42L51
MCLKDIV2
LO Internal MCLK to CS42L51 not divided
HI Internal MCLK to CS42L51 divided by 2
I2S/LJ
LO CS42L51 Interface Format: Left-Justified
HI CS42L51 Interface Format: I²S
DE-EMPHASIS
LO No internal De-emphasis applied to CS42L51
HI 44.1 kHz internal De-emphasis applied to CS42L51
Table 2. CS42L51 H/W Mode Control
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 signals. Not Available.
SPDIF OPTICAL OUT OPT2 Output CS8406 digital audio output via optical cable.
SPDIF COAX OUT J68 Output CS8406 digital audio output via coaxial cable.
SPDIF OPTICAL IN OPT1 Input CS8415 digital audio input via optical cable.
SPDIF COAX IN J61 Input CS8415 digital audio input via coaxial cable.
I/O Header J5 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 S4 Input Reset for the micro controller (U84).
FPGA PROGRAM S2 Input Reload Xilinx Flash program into the FPGA (U14).
H/W BOARD RESET S1 Input Reset for the CS42L51 (U1).
LINEB
LINEA J62
J7
Input RCA phono jacks for analog input signal to CS42L51.
MIC1
MIC2 J35
J51 Input Microphone jacks for analog input signal to CS42L51.
LEFT
RIGHT
J19
J20 Output RCA phono jacks for analog outputs.
SPEAKER +
SPEAKER -
J72
J73 Output Binding Post connected to LM4889 speaker driver for analog outputs.
Headphone Jack J11 Output Headphone jack for analog outputs.
Table 3. System Connections