CDB42528 Cirrus Logic Inc, CDB42528 Datasheet - Page 5

• Manufacturer Part Number: CDB42528
• Description: BOARD EVAL FOR CS42528/CS49300
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42528

• Main Purpose: Audio, Audio Processing
• Embedded: Yes, DSP
• Utilized Ic / Part: CS49300, CS42528
• Primary Attributes: 8 Single-Ended Analog Inputs and Outputs, 4 S/PDIF Inputs and 2 S/PDIF Outputs
• Secondary Attributes: Parallel, RS422, RS232, UDSP Interfaces
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1503

1. QUICK START
A PC with an ECP parallel port, a stereo analog
audio source, and powered speakers are required to
use the CRD42528 in the mode specified in this
Quick Start.
1) Install the drivers supplied with the board on
2) Connect the supplied parallel port cable to J46
3) Connect the analog output from an audio
4) Connect powered speakers to AIO15-16. The
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the PC. Refer to
page 37
on the UDSP MainBoard (marked P PORT)
and to the computer’s ECP parallel port.
source to AIO7-8 (Left and Right Inputs) The
input channels are mapped as follows:
output channels are mapped as follows (more
speakers can be connected to the line level
outputs as required by each application):
AIO8 - Left
AIO7 - Right
AIO6 - Left Surround
AIO5 - Right Surround
AIO4 - Center
AIO3 - Subwoofer / Low Frequency Effects
(LFE)
AIO2 - Surround Back Left
AIO1 - Surround Back Right
AIO16 - Left
AIO15 - Right
AIO14 - Left Surround
AIO13 - Right Surround
AIO12 - Center
AIO11 - Subwoofer or Low Frequency Ef-
fects (LFE)
AIO10 - Surround Back Left or Lt
AIO9 - Surround Back Right or Rt
for details on installing the drivers.
“UDSP Schematics” on
5) Connect the supplied power supply to the
6) Verify that LEDs D1, D7, D9, and D11 on the
7) Open a DOS window and navigate to the
8) Type in “setpld -r 99” on the DOS prompt.
9) Verify that LED D1 (marked ERR) has turned
10) If the above steps give an error, refer to
11) If the above steps give the expected results, ty p e
12) The audio data on the Left and Right Input
13) The batch files use various files to configure the
power connector on the board and to an
appropriate power outlet.
UDSP board are lit. LED D2 will flash to
indicate that the PLD on the UDSP is
functional.
C:\CS49300\CRD42528\Configs directory.
(This reads the PLD version register and
verifies that the PC can communicate with the
board). If the driver generates the error message
“!!! Board does not appear to be connected !!!”,
then your parallel port address may not be
0x378 or your port is not ECP capable. If your
parallel port address is not 0x378, depress the
reset switch S3 and type in “setpld -r 99 -p3bc”
or “setpld -r 99 -p278” to communicate using a
different parallel port address.
OFF, indicating that the driver has successfully
communicated with the board.
Schematics” on page 37
drivers and PC have been set up as described
(and that the parallel port address is correct / set
to ECP mode).
in “an alo g _ in_ 9 6 kH z”, “an alo g _in_ 9 6k H z -
p 3b c”,
(depending on your parallel port address) at the
DOS prompt. This batch file will configure the
PLD, boot the DSP, and configure the CS42528
for 8 channel analog processing at 96 kHz.
connectors (AIO7-8) should now be heard on
the output.
software, board, and the DSP code. Each batch
o r
“analog_in_96kHz
and verify that the
“UDSP
-p278”
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