LE402CS is a 2 channel audio development kit containing the DT402EB
board and the DT4218DB audio board.
features the 402ZX 200 MHz ZSP with 256K words of external SRAM and 512K
words of external Flash, a programmable CPLD (Lattice LC4128V) containing
external memory decode logic, LCD and LED controllers, a 16-bit user I/O
controller, and a rotary switch for selection of the ZSP operating frequency.
Built in are two serial port connectors and an external host port interface.
The DT402EB has either an external power supply or utilizes the USB.
features the Cirrus Logic CS4218 16-bit stereo Delta-Sigma Codec. With
two external clock sources, it supports sampling rates of 48 8 kHz and 44.1 -
7.35 kHz. It features stereo line level output and a user selectable option of
stereo line level input/ dual microphone. The microphone circuit supports
electret microphones with bias voltage and pre-amp module. The board features
an 8-bit microcontroller providing an I2C interface to the ZSP, a controlling
oscillator selection as well as programming of the codec operating features.
Pre-programmed, sample applications are provided for
use with ZViewIDE ; the Integrated Development
Environment is a windows based, open, industry supported, extensible software
development environment which provides a compiler, linker, source code project
manager, editors, and a ZSP target debugger.