This application note explains how to interface AD7676 ADCs in master serial mode to ADSP-21365 SHARC® processors. It also provides example code to demonstrate how the ADSP-21365 processor's Serial Port (SPORT) can be programmed to receive data from the AD7676 converter when the AD7676 is configured in master serial mode.
This document details the interfacing of Analog Devices AD7676 analog-to-digital converters (ADCs) with ADSP-21365 SHARC processors. It specifically covers configurations where the ADC operates in master serial mode using an internal discontinuous clock to drive the processor's Serial Port (SPORT). The guide explains how to configure the SPORT0 frame sync to generate the conversion start signal (/CNVST) and how to use SPORT1 to receive data samples.
| Resolution | 16-bit |
|---|---|
| Sampling Rate | 500 kSPS |
| Power Supply | Single 5-V |
The application note discusses an interface in master serial mode only.
The serial port is configured for a word length of 15 bits initially, followed by dummy reads.