The H16450S is a standard UART providing 100% software compatibility with the popular Texas Instruments 16450 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 ASIC and FPGA applications, the H16450S is available optimized for several technologies with competitive utilization and performance characteristics.


Features

      •  Capable of running all existing 16450 software
      •  Fully Synchronous design. All inputs and outputs are based on the rising edge of clock
      •  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 input clock by 1 to（2**16 - 1）and generates the 16 x clock
      •  Modem control functions（CTSn, RTSn, DSRn, DTRn, RIn, and DCDn）
      •  Fully programmable serial interface characteristics：
　　  　□　5, 6, 7, or 8 bit characters
　　　  □　Even, odd, or no-parity bit generation and detection
　  　　□　1, 1½, or 2 stop bit generation
　　  　□　Baud generation
      •  False start bit detection
      •  Complete status register
      •  Internal diagnostic capabilities: loopback controls for communications link fault isolation
      •  Full prioritized interrupt system controls


Applications

The H16450S can be utilized for a variety of applications including：
      •  Serial or modem computer interface
      •  Serial interface within modems and other devices