H8250

Features:

*  Capable of running all existing 8250 software  Adds or deletes standard asynchronous
*  communication bits (start, stop and parity) to  or from the serial data
*  Independently controlled transmit, receive,  line status and data set interrupts
*  Programmable baud generator divides any  16 input clock by 1 to (2  - 1) and generates the  16 x clock
*  Independent receiver clock input
*  Modem control functions (CTSn, RTSn, DSRn,  DTRn, RIn, and DCDn)  Fully programmable serial interface
*  characteristics:  
    o 5, 6, 7, or 8 bit characters 
    o Even, odd, or no-parity bit generation and  detection 
    o 1, 11/2, or 2 stop bit generation 
    o Baud generation
*  False start bit detection
*  Complete status register
*  Internal diagnostic capabilities: loopback  controls for communications link fault isolation
*  Full prioritized interrupt system controls


Application

*  Serial or modem computer interface
*  Serial interface within modems and other devices


Pinout




Description

The H8250 is a standard UART providing 100%  software compatibility with the popular Intel 8250  device. It performs serial-to-parallel conversion on  data originating from modems or other serial  devices, and performs parallel-to-serial  conversion on data from a CPU to these devices.

Developed for easy reuse in Altera FPGA  applications, the H8250 is available optimized for  several device families with competitive utilization  and performance characteristics.