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consider normally foreseeable failure rates or failure modes in semiconductor devices and
employ systemic measures such as fail-safes, so that the equipment incorporating Hitachi
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semiconductor products.
Preface
With the recent advent of home video-game machines that offer a fast, responsive man-machine
interface and high-resolution graphics at a low price, there is a demand for a similar revolution in
graphics quality in the entire home information market, covering such products as car navigation
systems and Internet TVs.
In addition to the need for a powerful and simple means of handling the necessary processing,
there are growing demands for the preservation of upward-compatibility of software and data
bases. At the same time, there is the question of how best to handle the increasingly complex
graphics algorithms required for these applications.
In response to this demand, Hitachi has developed the Q Series of graphics accelerators, offering
high-speed rendering and display processing in a chip set that includes a SuperH family
microcomputer.
The Q (“Quick”) series is designed for use in a chip set with a SuperH family microcomputer to
provide a compact system capable of the high-speed geometric, rendering, and display processing
required by graphics display systems.
Q Series devices perform rendering and display processing compatible with the SuperH family,
based on the concepts of simplicity, realtime operation, and upgradability.
The HD64412 (Q2i) is a 2D graphics renderer for minimum system configuration use within this
series, featuring minimized graphics memory (one 4-Mbit memory), unified handling of graphics
and natural images, realtime software 3D graphics drawing, and improved system bus utilization.
The Q2i makes it possible to implement a compact graphics processing system with high-level
drawing capabilities for a wide range of multimedia terminals, including car navigation systems,
medium-definition OA products such as Internet computers, and display systems in industrial
equipment, as well as Internet TVs, karaoke systems, and similar AV products.
For examples of the use of this LSI, see Q Series Application Notes—HD64412Q2i.
Rev. 1.0, 05/00, page i of vii
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