D8255 - Programmable Peripheral Interface

Block Diagram

Solution Type: IP Core

End Market: Automotive, Broadcast, Computer & Storage, Consumer, Industrial, Medical, Military, Test & Measurement, Wireless, Wireline

Evaluation Method: OpenCore, OpenCore Plus

Technology: Processors and Peripherals: Peripherals

Arria Series: Arria 10, Arria V, Arria 10 SoC, Arria V SoC

Cyclone Series: Cyclone IV, Cyclone V, Cyclone V SoC

MAX Series: MAX 10, MAX V

Stratix Series: Stratix IV, Stratix V

Overview

The D8255 is a programmable I/O device, designed to be used with all Intel CPUs. What's significant, it also supports most other microprocessors. Our innovative IP core provides 24 I/O pins, which may be individually programmed in 2 groups of 12 and used in 3 major modes of operation: - Mode 0 - Basic Input/Output. - MODE 1 - Strobed Input/Output - MODE 2 - Strobed Bidirectional Bus I/O The functional configuration of the D8255 is programmed by the system software, so that normally no external logic is needed to interface peripheral devices or structures. The control word register can be both written and read, as it has been shown in the address decode table (please, see the pin descriptions in the datasheet).

Features

    Device Utilization and Performance

    Provided in the product datasheet.

    Getting Started

    For additional information, contact Digital Core Design at: Wroclawska 94 41-902 Bytom Poland Tel: +48 32 2828266 Fax: +48 32 2827437 E-mail: aleads@dcd.pl Website: http://www.digitalcoredesign.com

    IP Quality Metrics

    Basic
    Year IP was first released2006
    Latest version of Quartus supported15.1
    Altera Customer Use
    IP has been successfully implemented in production with at least one customerY
    Deliverables

    Customer deliverables include the following:

    • Design file (encrypted source code or post-synthesis netlist)
    • Simulation model for ModelSim Altera edition
    • Timing and/or layout constraints
    • Testbench or design example
    • Documentation with revision control
    • Readme file
    Y
    Parameterization GUI allowing end user to configure IPY
    IP core is enabled for OpenCore Plus SupportY
    Source language
    Verilog; VHDL
    Testbench languageVerilog; VHDL
    Software drivers providedY
    Driver OS supportTBD
    Implementation
    User InterfaceAXI; Avalon-MM
    IP-XACT Metadata includedN
    Verification
    Simulators supportedModelSim
    Hardware validated Y. Altera Board Name DE1, DE2
    Industry standard compliance testing performed
    N
    If No, is it planned?Y
    Interoperability
    IP has undergone interoperability testing
    N
    Interoperability reports available  Y

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