Microchip Technology AT91CAP7X-DK33

Overview

AT91CAP7X-DK33 from Atmel is a development kit for the CAP™ customizable microcontroller family, built around an ARM7TDMI®-based core and Xilinx® Virtex®-4 FPGA (500K ASIC gate equivalent), supporting 1.8V memory configurations including Burst Cellular RAM and Mobile DDR SDRAM. It enables rapid hardware/software co-development for embedded control, industrial automation, and multimedia applications requiring flexible logic integration.

For engineers reviewing the AT91CAP7X-DK33 datasheet, AT91CAP7X-DK33 pinout, AT91CAP7X-DK33 application, or AT91CAP7X-DK33 equivalent, this kit provides validated FPGA-configurable platform access to ARM7-based system-on-module prototyping with dual-voltage memory support, analog I/O, and real-time peripheral interfaces.

Technical Context

The AT91CAP7X-DK33 integrates a fixed ARM7TDMI® microcontroller subsystem with a Xilinx Virtex-4 FPGA implementing configurable logic up to 500K ASIC gates. Its motherboard supports simultaneous 1.8V memory operation (Burst Cellular RAM, Mobile DDR SDRAM) and includes AC97/I2S audio codecs, 4-channel analog inputs, and CAN bus interface.

Hardware/software co-simulation is enabled via DBGU serial port, USB device/host PHYs, SD/MMC slots, and PIO expansion connectors (PIOA–PIOD). The mezzanine board hosts the CAP7X processor and FPGA; the memory extension board provides selectable 1.8V memory options without requiring PCB redesign.

Key Specifications

Availability

AT91CAP7X-DK33 is available at Aetrix Electronics and suitable for industrial automation prototyping, embedded vision evaluation, and low-power ARM7-based HMI development requiring stable component supply and long-term design validation support.

Supply support for AT91CAP7X-DK33 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Atmel Corporation (now part of Microchip Technology) is a semiconductor manufacturer specializing in microcontrollers, FPGAs, and embedded system solutions for industrial, automotive, and consumer applications.

The CAP™ product line delivers customizable ARM-based SoMs combining fixed microcontroller cores with high-density FPGA fabric, targeting right-first-time silicon development and rapid functional validation before ASIC tape-out.

FAQ

What is the AT91CAP7X-DK33 used for?

The AT91CAP7X-DK33 is a development kit designed for prototyping and validating custom logic implementations on ARM7TDMI®-based systems. It enables engineers to develop, test, and debug both software and FPGA-configurable hardware concurrently-particularly for industrial control, HMI, and low-power embedded applications where early silicon risk mitigation is critical. The AT91CAP7X-DK33 supports full-system co-simulation prior to final ASIC fabrication.

Does the AT91CAP7X-DK33 include a processor and FPGA?

Yes, the AT91CAP7X-DK33 includes a mezzanine board hosting the AT91CAP7X ARM7TDMI® microcontroller and a Xilinx Virtex-4 FPGA rated at 500K ASIC gate equivalent. This combination provides a fixed control plane plus reconfigurable logic fabric, allowing users to emulate custom IP blocks and verify timing-critical interfaces before committing to metal-programmed silicon. The AT91CAP7X-DK33 leverages this architecture for pre-silicon validation.

What memory types does the AT91CAP7X-DK33 support?

The AT91CAP7X-DK33 supports 1.8V memory configurations only, including Burst Cellular RAM and Mobile DDR SDRAM on its memory extension board. These are selected for low-voltage, low-power operation in portable and battery-sensitive applications. It does not support 3.3V NOR/NAND Flash or SDRAM variants-those are exclusive to CAP9-series kits like AT91CAP9HA-DK.

Can the AT91CAP7X-DK33 be used for audio development?

Yes, the AT91CAP7X-DK33 includes both AC97 and I2S audio interfaces with dedicated 3.5 mm jacks for line-in/line-out and microphone input, enabling full-duplex audio processing and playback. The onboard audio codec supports sampling rates up to 48 kHz and integrates with the ARM7 core and FPGA for real-time signal conditioning or filtering tasks. Audio functionality is fully accessible via the AT91CAP7X-DK33 motherboard.

Is the AT91CAP7X-DK33 compatible with other CAP development boards?

The AT91CAP7X-DK33 uses the common CAP motherboard shared across the CAP family, ensuring mechanical and connector compatibility with other mezzanine boards (e.g., CAP9A, CAP9HA). However, FPGA gate count, memory voltage, and supported peripherals differ-so while physical stacking is possible, electrical and firmware compatibility requires validation per use case. The AT91CAP7X-DK33 is not functionally interchangeable with higher-gate-count kits.