From iWave Systems Technologies Pvt. Ltd.

8251 Serial Controller

Block Diagram

Solution Type: IP Core

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

Evaluation Method: 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

Stratix Series: Stratix® IV, Stratix® V

Overview

8251 Serial Controller is an USART with support for asynchronous communication only. This controller converts parallel data from the processor to serial data and transmits it and converts the serial received data into parallel data for the processor to read.

Features

RS-232-C protocol support & Baud rate generator or timer output selectable as Tx/Rx clock
Asynchronous communication only & Serial interrupt support & Clock rates of baud rate of x16 or x64
Character length of 7 or 8 bits & 1 or 2 Stop bits & Break transmission
Automatic break detection & Full duplex double buffer system & Parity addition/checking
Error detection for parity, overrun and framing errors

Device Utilization and Performance

Intel® Cyclone® IV E Logic Element combinational - 164 Logic Element Registers - 147

Getting Started

1. Uses as a peripheral device of microcomputer system 2. Configurable for ease of use 3. Compatible with 8251 and uPD71051 4. Programmable baud rate generator

IP Quality Metrics

Basic
Year IP was first released	2011
Latest version of Quartus supported	18.0
Altera Customer Use
IP has been successfully implemented in production with at least one customer	Y
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 IP	Y
IP core is enabled for OpenCore Plus Support	Y
Source language	Verilog
Testbench language	Verilog
Software drivers provided	N
Driver OS support	LINUX
Implementation
User Interface	Avalon-MM
IP-XACT Metadata included	N
Verification
Simulators supported	ModelSim DE 10.2
Hardware validated	Y. Altera Board Name Any Altera Development kit
Industry standard compliance testing performed	N
If No, is it planned?	Y
Interoperability
IP has undergone interoperability testing	N
Interoperability reports available	N

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