ADAU1977

• For the evaluation of the ADAU1977/ADAU1978/ADAU1979 quad ADCs
• Total harmonic distortion (THD) plus noise (N): −95 dB at −1 dBFS
• Signal to noise ratio (SNR): 109 dB, A weighting filter
• Built-in diagnostics for microphone inputs

The Analog Devices USBi “USB Interface” (EVAL-ADUSB2EBZ) board is the interface between your PC's USB port and SigmaDSP hardware's data input pins. This interface can be used with any evaluation board which includes an External SPI/I²C header (Aardvark Header). The EVAL-ADUSB2EBZ board is capable of both SPI and I²C communication (which is user selectable) and can supply IOVDD of either 3.3V or 1.8V.The USBi interface is powered from the computer's USB port.

Using USBi in SigmaStudio:

To communication between SigmaStudio and the USBi board, a communication channel block must be added to the Schematic design. To locate the block, select the Hardware Configuration Tab, in the ToolBox or Tree ToolBox window choose the “Communication Channels” category, and select the USBi block.

This block provides connections for multiple processors (ICs / DSPs), allowing you to use multiple processors in a single design. This block allows you to explicitly specify both the communication protocol (SPI or I²C) and the part's address, I²C address or SPI catch line. The DSP hardware's address must match the block's selected address for communication to function properly. See the parts data sheet for more information about addressing (e.g. ADR_SEL, ADDR0, or ADDR1 pins). The default USBi protocol is I²C, to enable SPI, you must first select an SPI address in the block's drop down menu and then perform three write operations (e.g. press the write button the Register Read/Write Window 3 times). The USBi hardware has LEDs which indicate the current mode, I²C or SPI.

• ADSP-SC584 349-pin 19x19mm BGA
• 2Gb DDR3 Memory
• 128 Mb SPI Flash
• Ethernet (10/100 &  GigE)
• ADAU1977 quad ADC
• ADAU1979 quad ADC
• ADAU1962A 12 channel 24-bit DAC
• AD2410 Automotive Audio Bus (A2B)
• SPDIF in/out, optical & coax
• UART
• 2 CAN transceivers + RJ11 connectors
• USB OTG
• HADC
• EI3 Expansion Interface
• EZLITE includes ICE-1000 JTAG emulator and a permanent CrossCore^® Embedded Studio license for use with the EZLITE via ICE-1000

The ADSP-SC584 EZ-KIT Lite and EZ-Board^® are evaluation systems for the ADSP-SC58x family of SHARC^® processors. The ADSP-SC584 processor is based on the SHARC+^™ core dual processor with the arm^® Cortex-A5^™ processor core and is designed for a wide array of markets, from automotive and pro-audio to industrial-based applications that require high floating-point performance. The EZ-Board is shipped with all of the necessary hardware—you can start the evaluation immediately. The package contains the standalone evaluation board, CE-approved power supply, and USB cable. The EZ-KIT Lite^® version ships with two 180 day licenses for CrossCore^® Embedded Studio (CCES) and the ICE-1000 emulator, while the EZ-Board version requires the customer to provide an ICE-1000 or ICE-2000 emulator.

Expansion Interface III connectors are provided for interfacing with additional extender boards to provide LCD, camera, video, and audio. Traditional mechanical switches for changing the board's factory setup have been removed in favor of I2C controlled software switches. The only remaining mechanical switches are the boot mode switch, JTAG configuration switches, and push buttons.

The evaluation board is designed to be used in conjunction with the CrossCore^® Embedded Studio (CCES) development tools to test capabilities of the ADSP-SC58x processors. The development environment aids advanced application code development and debug, such as:

• Create, compile, assemble, and link application programs written in C++, C, and assembly
• Load, run, step, halt, and set breakpoints in application programs
• Read and write data and program memory
• Read and write core and peripheral registers