1 EZ-EXTENDER INTERFACES
This chapter relates how the extender interfaces with the compatible boards. The information is presented in the following sections.
•“ADC HSC Interface” on page 1-1
•“Breadboard Area” on page 1-2
ADC HSC Interface
The SHARC EZ-Extender can connect to an analog-to-digital high-speed converter (ADC HSC) evaluation board via the ADC HSC interface. The ADC HSC interface consists of a 40-pin female header, which contains all of the control and data signals necessary to transfer data between the par- allel data access port (PDAP) of the processor and the HSC evaluation board. Additionally, the extender provides a RJ-45 connector, which con- tains all of the serial peripheral interconnect (SPI) signals necessary to configure the control registers of capable high-speed converters. For a block diagram of the ADC HSC interface, see Figure 2-1 on page 2-2.
Before using the SHARC EZ-Extender, familiarize yourself with the docu- mentation and schematics of the target board and the ADSP-21262 EZ-KIT Lite. For example, on the EZ-KIT Lite, it may be necessary to disable other devices on the PDAP or disable the push buttons.
To configure the SHARC EZ-Extender to connect to an ADC HSC eval- uation board, determine the source of the PDAP clock and the direction of the general-purpose signals, DAI_P15_GP1 and DAI_P16_GP2. To learn about possible clock settings, refer to “Direction/Clock Source Control
SHARC EZ-Extender Manual | 1-1 |