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- From: bsalter@acorn.co.uk
- Subject: Acorn Press Release (New VIDC)
- Date: 6 Nov 92 09:05:23 GMT
-
- Acorn Welcomes New Video Chip
-
- Acorn has welcomed the announcement from Advanced RISC Machines Ltd of
- its VIDC20 video controller which has been designed to meet the needs
- of a wide range of video systems, from power sensisitive portable
- computers through to desktop multimedia workstations.
-
- This versatile controller can display at up to 16 million colours at
- VGA, Super VGA or XGA levels of resolution. Its low power architecture
- will drive the LCD screen of a portable computer directly whilst
- preserving battery life. It can be used to generate up to 32 bits per
- pixel at data rates of up to 160MBytes/second.
-
- As well as providing a programmable display system, the chip also has
- sophisticated audio support. The device is fully compatible with the
- previous VIDC capabilities, providing up to eight channels of stereo
- sound. For higher quality multi-media applications requiring both
- sound and vision the design provides a straightforward interface to
- dedicated sound controllers.
-
- Acorn Computers' Technical Director, Malcolm Bird confirmed that Acorn
- was fully involved in the specification for ARM's new graphics
- controller with a view to it being used in future products. "The
- VIDC20 is one in a new series of high performance chips from ARM Ltd
- that keeps the ARM component set at the forefront of cost effective
- technology. We are leading the test validation programme for the
- device and anticipate including it in future generations of
- computers." he said.
-
- Advanced RISC Machines (ARM) Ltd was formed in 1990 as a joint company
- by Acorn Computers, Apple Computer and VLSI Technology to design and
- implement high performance, low cost RISC processors for use in
- computers, embedded control systems, digital processing and portable
- applications. ARM has licensed its technology to two semiconductor
- product partners - GEC Plessey Semiconductors and VLSI Technology.
- Both manufacture and sell ARM products worldwide.
-
-
- Ends
-
-
-
- From: segars@armltd.uucp
- Subject: ARM VIDC20 Press Release
- Date: 6 Nov 92 12:58:53 GMT
- Organization: Acorn Computers Ltd, Cambridge, England
-
- FOR IMMEDIATE RELEASE 28 OCTOBER 1992
- ARM 017
- ARM DISPLAYS NEW GRAPHICS CONTROLLER
- VIDC20 OFFERS HIGH QUALITY SOUND AND VISION FOR MULTIMEDIA
-
- Advanced RISC Machines has announced the VIDC20, a high performance video
- controller that consumes very little power (typically 0.3W) and can directly
- drive both LCD screens and CRT video systems. The design has been produced to
- meet the needs of a wide range of video systems - from power sensitive portable
- computers through to desktop multimedia workstations and from graphics
- accelerators to games systems. The versatile device includes programmable
- display formats capable of supporting VGA, Super VGA and XGA levels of
- resolution at up to 16 million colours. Other features include a hardware
- cursor, programmable pixel rates and an on-chip sound system.
-
- VIDC20's low power architecture will drive the LCD screen of a portable
- computer directly, whilst preserving battery life, using a patented, 16-level
- grey scale algorithm to give high quality picture rendition. However VIDC20
- is also capable of directly driving a colour CRT, allowing the same portable
- computer to use a colour monitor on the desk without additional components.
- The power management techniques ensure that functions not in use, such as the
- video digital to analogue converters (DAC) and sound DACs do not consume power.
- In addition the on-board palette has been segmented so that only one eighth is
- enabled at any one time.
-
- VIDC20 was designed with the needs for higher levels of display resolution in
- mind. The chip can be used to generate 1, 2, 4, 8, 16 and 32-bits/pixel
- formats at data rates of up to 160Mbytes/second. The on-board 8-bit linear
- DACs gives a total of 16 million possible colours at rates of up to 100MHz and
- drive doubly terminated 75j lines directly. The inclusion of an on-chip phase
- comparator, when used with a voltage controlled oscillator (VCO), allows a
- single reference clock to generate all of the frequencies for any display mode.
- Tudor Brown, ARM's Engineering Manager, commented: "By understanding how
- graphics systems are built we have designed a chip that can be used cost-
- effectively in a wide range of applications."
-
- VIDC20 also supports a hardware cursor in all of its modes - high resolution,
- interlace and LCD. By offering cursor support on-chip the designer benefits
- from higher performance and lower software overhead resulting in a better
- "look and feel" for the user. The cursor is 32 pixels wide, an unlimited
- number of pixels high and can be displayed in 4 colours from its own 28-bit
- wide palette.
-
- As well as providing a programmable display system the chip also supports two
- different sound systems. An on-chip system incorporates an 8-bit mu-law DAC
- providing up to eight channels of stereo sound. A 32-bit serial sound interface
- output enables the connection of external CD DACs. The on-chip sound system
- makes the development of powerful yet low chip-count X-terminal controllers
- straightforward. For higher quality multi-media applications requiring both
- sound and vision the design provides a straightforward interface.
-
- The design of a product incorporating both high speed digital and analogue
- circuitry requires a close relationship between the designer and the
- manufacturer. ARM collaborates closely with its semiconductor partners - VLSI
- Technology Inc. and GEC Plessey Semiconductors Ltd - on all phases of the
- design from specification through to production, to ensure the smooth
- transition from development to volume manufacture.
-
- Jeff Hendy, VLSI's Director of New Business Development, said: "Our close
- relationship with ARM over the past several years has enabled us to offer our
- customers a unique spectrum of solutions based on performance and flexibility.
- The introduction of the VIDC20 extends this spectrum of solutions and delivers
- to our customers not only high graphics performance capabilities, but a broad
- range of graphics options on a single device as well."
-
- The ARM design approach is to make its products available as both packaged
- parts and as ASIC macrocells. VIDC20 was no exception and was designed using
- a modular approach to allow different versions to be created quickly and easily
- to customer specification. Robin Saxby, Managing Director of ARM commented:
- "Our QuickDesignTM approach using functional building blocks allows us to
- produce our products very quickly and easily, giving our customers exactly what
- they want, when they want it, without the need for a complete redesign every
- time a change is desired. ARM customers can now have the benefits of the VIDC20
- in a library for inclusion in other ARM circuits."
-
- The VIDC20 is available from VLSI Technology in a 128 pin PQFP package.
- Budgetary pricing for the part is $36 in 1K quantities.
-
- Advanced RISC Machines (ARM) was formed in 1990 by Acorn Computers, Apple
- Computer and VLSI Technology. ARM focuses on high performance, low cost, low
- power consumption 32-bit RISC processors for embedded control, computing,
- digital single processing and portable applications. ARM also designs
- peripherals, supporting software and hardware tools. ARM has licensed its
- technology to two semiconductor product partners, GEC Plessey Semiconductors
- and VLSI Technology. Both manufacture and sell ARM products world-wide; ARM
- also offers design service, consultancy, feasibility studies, training and
- supply of prototypes.
-
- ***[ENDS]***
-
- ISSUED BY: Ralph Tuckwell, MMC Group plc, Mitchell House, Montem Road, New
- Malden, Surrey KT3 3QW. Tel: (081) 336 1282. Fax: (081) 949 2603.
-
- ON BEHALF OF: Robin Saxby, Advanced RISC Machines Ltd, Swaffham Bulbeck,
- Cambridge CB5 0NA. Tel: (0223) 813000. Fax: (0223) 812800. E-mail address:
- marketing@armltd.co.uk
-
- *******************************************************************************
-
- Simon Segars : ssegars@armltd.co.uk
- Advanced RISC Machines Ltd
-
-