D85C30 - UART Core with SDLC Function

Block Diagram

Solution Type: IP Core

End Market: Automotive, Consumer, Industrial, Medical, Military

Evaluation Method: OpenCore, OpenCore Plus

Technology: Processors and Peripherals: Peripherals

Arria Series: Intel® Arria® 10, Arria® V, Intel® Arria® 10 SoC, Arria® V SoC

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

MAX Series: Intel® MAX® 10

Stratix Series: Stratix® IV, Stratix® V


The D85C30 - (Serial Communication Controller) is a dual channel USART (Universal Synchronous/Asynchronous Receiver/Transmitter) device, designed for use with 8 and 16-bit microprocessors. It functions as serial-to-parallel, parallel-to-serial converter/controller and can be software-configured to satisfy a wide variety of serial communications applications. The device contains a variety of new, sophisticated internal functions, including on-chip baud rate generators. The D85C30 handles asynchronous formats, synchronous byte-oriented protocols, such as IBM Bisync, and synchronous bit-oriented protocols, like HDLC and IBM SDLC. This versatile device supports virtually any serial data transfer application (telecommunication, LAN, etc.). The device can generate and check CRC codes in any synchronous mode and can be programmed to check data integrity in various modes.


  • Software compatible with Z85C30; Dual Channel: A, B; Configuration capability
  • Asynchronous mode; Character-Oriented mode; Bit-Oriented mode
  • Complete status reporting capabilities; Receiver data FIFO and Error FIFO; SDLC Frame FIFO
  • Data encoder\\decoder (NRZ, NRZI; FM0, FM1; Manchester - requires external logic); Line break generation and detection
  • Internal diagnostic capabilities; Fully synchronous design with no internal tristate buffers

Device Utilization and Performance

Provided in the product datasheet.

Getting Started

For additional information, contact DCD at: Digital Core Design Wroclawska 94 41-902 Bytom Poland Tel. +48 32 282 82 66 Fax +48 32 282 74 37 E-mail: aleads@dcd.pl WWW: http://www.dcd.com.pl

IP Quality Metrics

Year IP was first released2013
Latest version of Quartus supported15.1
Altera Customer Use
IP has been successfully implemented in production with at least one customerY

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
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 supportNA
User InterfaceAXI; Avalon-MM
IP-XACT Metadata includedN
Simulators supportedModelSim
Hardware validated Y. Altera Board Name DE1, DE2
Industry standard compliance testing performed
If No, is it planned?Y
IP has undergone interoperability testing
Interoperability reports available  N

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