CRD-49530-USB Cirrus Logic Inc, CRD-49530-USB Datasheet - Page 16

• Manufacturer Part Number: CRD-49530-USB
• Description: Audio Modules & Development Tools Eval Bd 32-Bit Aud Dcdr & Prgrmble DSP
• Manufacturer: Cirrus Logic Inc

Specifications of CRD-49530-USB

• Product: Audio Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Introducing the CRD49530-USB Customer Reference Kit
CRD49530--USB User’s Manual
2-1
2.1 Introducing the CRD49530-USB Customer Reference Kit
PC
The CRD49530-USB kit is composed of the CRD49530 customer reference design and the CRD USB
Master USB Control board. The CRD49530 provides a practical platform for emulating a typical multi-
channel audio system application. The CRD USB Master is a USB control board used to interface the host
PC to the CRD49530, and convert GUI commands into the serial control protocol required for configuring
the CS4953xx, CS42448, and CS8416 audio ICs.
CRD49530 and the CRD USB Master.
This document will concentrate on the features and basic operation of the CRD49530 board. Detailed
information regarding the operation and programming of the CS4953xx DSP is covered by the CS4953xx
Data Sheet, CS4953xx Hardware User’s Manual, and application note AN288 (see
Information"on page 1-9
The CRD49530 is a convenient and easy-to-operate evaluation platform. It has been designed to
demonstrate the majority of the CS4953xx functions on a small 6" x 5.5" base board. These features
include:
• PC control of the CS4953xx using the DSP Composer
• Serial control of audio devices on CRD49530 via I
• Digital audio input of PCM or compressed data via optical or coaxial S/PDIF
• 6-channel analog audio input via the CS42448 audio codec
• 8-channel analog output through the CS42448 audio codec
• Digital audio output of PCM data via optical S/PDIF
• Multi-channel digital audio input via the USB Master (feature not currently supported)
• Separate input and output clocking domains to allow 1FS-to-2FS audio processing on the CS4953xx
• DSP Memory expansion through external 64 Mbit SDRAM
• Fast boot – host-controlled master boot (HCMB) of custom applications from 4 Mbit serial SPI flash
• Microphone input with integrated amplifier for Intelligent Room Calibration (IRC) evaluation
• Supports all members of the CS4953xx and CS497xx family in the 144-pin LQFP package.
device.
USB Port
for more details).
Figure 2-1. CRD49530-USB System Block Diagram
Copyright 2008 Cirrus Logic
Serial Control Interface
Reset Signals
Board Control Signals
Audio Data (Future Development)
Introduction to CRD49530-USB Kit
Figure 2-1
2
C
®
™
or SPI™ protocols
shows the relationship between the
graphical user interface
CRD49530
"Other Useful
Chapter 2
DS705RD3