The SCC cost about $ 5 more than a UART, but offered much higher speeds up to 250 kbit / s ( or higher with additional hardware ) and internally supported a number of basic networking-like protocols like IBM's Bisync.

The interrupt controller can be as simple as a 74LS148 priority encoder, or may be part of a VLSI peripheral chip such as the MC68901 Multi-Function Peripheral ( used in Atari TT030 ), which also provided a UART, timer, and parallel I / O.

Universal Asynchronous Receiver / Transmitter ( UART ) block makes it possible to receive and transmit data over a serial line with very little load on the CPU.

Photo of a 16550 The 16550 UART ( universal asynchronous receiver / transmitter ) is an integrated circuit designed for implementing the interface for serial communications.

A UART function that is register-compatible with the 16550 is usually a feature of multifunction I / O cards for IBM PC-compatible computers, and may be integrated on the motherboard of other compatible computers.

* Communications software directly accessed the UART serial port chip, because the MS-DOS API and the BIOS did not provide full support and was too slow to keep up with hardware which could transfer data at 19200 bit / s.

Once a UART, and a timer if necessary, have been configured, the programmer needs only to write a simple interrupt routine to refill the send shift register whenever the last bit is shifted out by the UART and / or empty the full receive shift register ( copy the data somewhere else ).

A Universal Asynchronous Receiver / Transmitter, abbreviated UART (), is a type of " asynchronous receiver / transmitter ", a piece of computer hardware that translates data between parallel and serial forms.

Many modern ICs now come with a UART that can also communicate synchronously ; these devices are called USARTs ( universal synchronous / asynchronous receiver / transmitter ).

The Universal Asynchronous Receiver / Transmitter ( UART ) takes bytes of data and transmits the individual bits in a sequential fashion.

If the CPU, for example, wants to send information out on COM1, it writes to I / O port 0x3F8, as this I / O port is " connected " to the UART IC register which holds the information that is to be sent out.

** Synchronous / asynchronous serial peripherals ( UART / USART ) ( used with RS-232, RS-485, and more )

* Universal asynchronous receiver / transmitter ( UART )

Most PC serial ports, the traditional interface for external hardware modems, are limited to 115, 200 bits per second by UART limitations, though some ports are capable of 230, 400 bit / s.

Unlike the C64 which emulated the 6551 chip in software, the Plus / 4 had a built-in MOS Technology 6551 UART chip that could perform up to.

The DEC founders Ken Olsen and Harlan Anderson recruited him for their new company in 1960, where he designed the I / O subsystem of the PDP-1, including the first UART.

The NEC V53 ( μPD70236 ) integrates a V33 core with 4-channel DMA ( μPD71087 / i8237 ), UART ( μPD71051 / i8251 ), three timer / counters ( μPD71054 / i8254 ) and interrupt controller ( μPD71059 / i8259 ).

An example of an early 1980s UART was the National Semiconductor 8250.

It was originally developed by Texas Instruments as a replacement for the AGM-45 Shrike and AGM-78 Standard ARM system.

Production was later taken over by Raytheon Corporation ( RAYCO ) when it purchased the defense production business of Texas Instruments.

Category: Texas Instruments

The first international Bluetooth Innovation World Cup 2009 drew more than 250 international entries, including Nokia, Freescale Semiconductor, Texas Instruments, Nordic Semiconductor, STMicroelectronics and Brunel.

Ports of the game were released for the Commodore 64, Sinclair ZX Spectrum, Amiga, Atari ST, MSX, Amstrad CPC, Sharp X68000, PC ( MS-DOS, 1989 and 1996 ), Apple II, FM Towns Marty, Sega Master System, Game Boy, Game Boy Color, Game Boy Advance, Nintendo DS, PlayStation, Sega Saturn, Nintendo Entertainment System, Famicom Disk System, Sega Game Gear, mobile phone ( Sprint PCS ), Texas Instruments TI-8x series of calculators and UltraCade's Taito Arcade Classics.

Several companies, including Fairchild Semiconductor, RCA and Texas Instruments, picked up on the invention and began development programs.

* Video processor: Texas Instruments TMS9928A ( 40 Pin DIP located under the heat sink in the circuit board picture )

* Sound: Texas Instruments SN76489A ( See chip U20 in circuit board picture )

* ROM ( See Read-only memory: 8 KB Texas Instruments TMS4764 Mask ROM ( See chip U2, marked TMS4764NL in circuit board picture )

Uses the AY-3-8500 game chip and the Texas Instruments SN76499N chip for color.

However, in 1975, Texas Instruments, the main supplier of calculator parts, entered the market directly and put out a line of machines priced at less than Commodore's cost for the parts.

This led to alliances between Japanese calculator manufacturers and U. S. semiconductor companies: Canon Inc. with Texas Instruments, Hayakawa Electric ( later known as Sharp Corporation ) with North-American Rockwell Microelectronics, Busicom with Mostek and Intel, and General Instrument with Sanyo.

The Canon Pocketronic was a development of the " Cal-Tech " project which had been started at Texas Instruments in 1965 as a research project to produce a portable calculator.

As a result of the " Cal-Tech " project, Texas Instruments was granted master patents on portable calculators.

However, the efforts in integrated circuit development culminated in the introduction in early 1971 of the first " calculator on a chip ", the MK6010 by Mostek, followed by Texas Instruments later in the year.

In 1973, Texas Instruments ( TI ) introduced the SR-10, ( SR signifying slide rule ) an algebraic entry pocket calculator using scientific notation for $ 150.

The company was formed by Rod Canion, Jim Harris and Bill Murto — former Texas Instruments senior managers.

Compaq was founded in February 1982 by Rod Canion, Jim Harris and Bill Murto, three senior managers from semiconductor manufacturer Texas Instruments.

He joined Compaq from Texas Instruments, and established operations from scratch in both Europe and Asia.

The DragonBall's major design win was in earlier versions of the Palm Computing platform ; however, from Palm OS 5 onwards it has been superseded by ARM-based processors from Texas Instruments and Intel.

* On June 18, 1999, realization of the first digital cinema projection in United States with Texas Instruments DLP Cinema technology.

* On February 2, 2000, Philippe Binant, technical manager of Digital Cinema Project at Gaumont in France, realized the first digital cinema projection in Europe with the Texas Instruments mark V prototype projector.

In 2000, Walt Disney, Texas Instruments and Technicolor with the cooperation of several U. S. and international exhibitors, began to deploy prototype Digital Cinema systems in commercial theatres.

The ELF file format is also used with the Atmel AVR ( 8-bit ), AVR32 and with Texas Instruments MSP430 microcontroller architectures.

Representatives of the EDA companies Daisy Systems, Mentor Graphics, Motorola, National Semiconductor, Tektronix, Texas Instruments and the University of California, Berkeley established the EDIF Steering Committee in November 1983.