Display driver

and a link editor. Development systems should include evaluation and in-circuit emulation boards. (Texas Instruments

Tl's 8-bit single-chip microcomputers Texas Instruments is hoping that their new family of 8-bit single-chip microcomputers, TMS7000, will be as successful as the industry-standard TMSI000 4-bit microcomputer family. The chips will carry the designation Microlanguage Processor (MLP). The TMST000 series represents Tl's continuing commitment to the singlechip microcomputer market. TI believe the single-chip micro, featuring onboard CPU, I/O circuitry and instruction and data memory, offers the best solution to high-volume production. In addition, the single-chip represents the largest section of the 8-bit microprocessor/ microcomputer market. Claimed to be the first 8-bit chip family with a standard microprogrammable instruction set, the TMS7000 features a memory-intensive architecture and a compact layout scheme (SCAT - strip chip architecture topology). Extensive use is made of

Ltd, Manton Lane, Bedford MK41 7PA, UK. Tel: (0234) 223000)

dense ROM and RAM, as well as transistor arrays, rather than the more space-consuming random-logic transistors. The MPL's three-tier onchip memory hierarchy consists of a stack of fast transistor-array CPU registers that operate concurrently with system memory, 128 byte of general-purpose data registers implemented in highspeed dynamic RAM and 2 kbyte of user ROM and offboard memory (expandible up to 64k). First offerings in the range are the NMOS TMS7020 and the TMS7000 ROMless version. TI are currently sampling these. The TMS7040 version will have 4k ROM. The 8-bit single-chip is expected to go the same way as the 4-bit TMS1000, i.e. customized EPROMs rather than ROMs, more I/O capability and onchip A/D conversion. Software will include micro and macro assemblers

Display driver D.256 is a display drive card from Datac. It provides single-board interfacing between the Epson MA-B95X and 96X series of alphanumeric LCD modules and a host system. The board (161 x 60 x 13 mm) offers 7-bit ASCII parallel character serial data input interface. A CMOS 256 x 8 RAM is used to store displayed data, so that a display of up to 256 characters can be driven. An EPROM-based character generator provides a full 96-character set in a 7 x 5 dot format. (Datac Ltd, Tudor

Road, Broadheath, Altringham, Cheshire WA14 5TN, UK. Tel: 061-941 2361)

information privacy availability •security

an international journal covering the technical, legal and social issues of computer-based information systems and their use GO ~

The journal is of interest to engineers, designers, analysts, data processing management, legal advisers, security managers, government officials and top management.

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| Further details and sample copy from:

|

I Christine Mullins, IPC Science and Technology I PressLtd., POBox63, WestburyHouse, BurySt., I Guildford, Surrey GU2 5BH, England

I I I

I I Telephone:0483-31261. Pleasesendmefurther

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I details of INFORMATION PRIVACY

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vol 5 no 6july~august 1981

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