0002 0228 RasterOps 8XL GSXL Specification Rev A1

RasterOps 8XL/GSXL Specification Revision A1 February 19, 1990 Jeff Tingley RasterOps Corporation PART # 0002-0228 RasterOps BXUGSXL Specification February 19, 1991 1.0 Introduction This document establishes the physical and electrical characteristics for the RasterOps 8XlJGSXL Graphics Display System. The RasterOps 8XlJGSXL, referred to as 8XL throughout the rest of this document, is a very high resolution, very high speed, graphics display system for the Macintosh II family of computers. The 8XL occupies 1 Nubus slot. It is capable of five pixel depths and several resolutions. A block diagram of the 8XL is shown in Figure 1-1. This document is the property of RasterOps Corporation and is confidential. Reproduction of this document is prohibited. RGS14188 VRAM Contrd Local Config. EEROM HghSpeedNulluo _ _ _ _Addtess _ _Bui ___................., . . _ _ Colorlloard ,......_ ....i Accolellllor Cdorl!oard Dala Bua Dil!My Memooy CdorBoerd Data Bua 1024x1024. 8 (1 Mertel Figure 1-1 8XL Block Diagram 2.0 Hardware Description 2.1 Features Switchable Resolutions of (Software Selectable) - 1152 x 870 (72 Hz Vertical Refresh) - 1024 x 768 (75 Hz Vertical Refresh) - 1024 x 768 (60 Hz Vertical Refresh) -800 x 600 -640 x 870 - 640 x 480 (66 Hz Non-interlaced) 2 BT478-110 February 19, 1991 RasterOps BXUGSXL Specification - 640 x 480 (30 Hz Interlaced) Pixel Depths of 1, 2, 4, and 8-bits Macintosh II "FAT" and "Skinny" NuBus Compatible ·1s.7 Million Color Palette 100, 80, 64, 57, 50, and 30.24, 12.2727 MHz Video Rate Single NuBus Slot Current Consumption of 1.5 Amps at 5 Volts Full Block Mode Support In All Bit-depths RS-343 Compatible 15-Pin D-Submininature Connector (Same as Apple) Hardware Zoom of 1x, 2x, 4x, and Bx Hardware Pan Extended Desktop State of the Art Surface Mount Technology Including three ASICs Supports the RasterOps Accelerator 2.2 Overview The 8XL is a stand alone frame buffer. This means one can plug this card into a NuBus Slot on a Macintosh and display up to 8-bits per pixel in one of several resolutions. As an added feature the 8XL also supports a direct interface, through the NuBus, to the RasterOps Accelerator. This card provides QuickDraw acceleration capabilities making the 8XL much faster when manipulating images in any bitdepth. 3 RasterOps BXUGSXL Specification February 19, 1991 3.0 Technical Data 3.1. Absolute Maximum Ratings Supply Voltage, VCC ......................................•............... Operating Ambient Temperature Range ......•..........•.... Storage Temperature ...................................................... ICC (Supply Current) .................................•..........•.... 5.25 Volts 0°Cto60°C -65 °C to 150 °C 1.5A@5.25 V 3.2 Reference Drawings The following items should be referenced for information on the 8XL. 8XL Top Assembly LM 8XL Assembly Drawing 8XL Schematics 8XL PCB Fab 8XL LJM 8XL Manual 8XL 0002-0224 0002-0223 0002-0225 0002-0226 0700-0069 3.3 Video Specifica…