Colorboard 264 SE30 Specification Rev A1

Colorboard 264/SE30 Specification Revision A1 June 1, 1989 Brad Patton RasterOps Corporation PART# XXXX-XXXX CB 264/SE30 Specification June 5, 1989 1.0 Introduction This document establishes the physical and electrical characteristics for the Colorboard 264/SE30 system. The Colorboard 264/SE30 is a high resolution, high speed, graphics display card for the Macintosh SE/30. The Colorboard 264/SE30 occupies the '030 direct slot within the SE/30. It is capable of four pixel depths and two resolutions in it's standard configuration. With the addition of a video memory expansion option the number of pixel depths becomes five. A block diagram of the Colorboard 264/SE30 is shown in Figure 1-1. This document is the property of RasterOps Corporation and is confidential. Reproduction of this document is prohibited. ADDRESS DECOD • CONTROL LOGIC ...0 VIDEO CLOCK SOURCE 30.24 MHz NI ....cc c 0 II) II) w a: c c c C'I 0 Ill (0 0 C'I 0 Ill (0 iii TMS34061 N' 01 u II. ui c ui c .100" x .100" HHcllr ~ ffi ~ ..I 0 RAM ARRAY ....z 512 x 512 x 16/48 a: VIDEO BACK END ASIC 8/24 0 u 0 C'I 0 Ill (0 264/30 Block Diagram Figure 1-1 Colorboard 264/SE30 Block Diagram 2 81473 DAC June 5, 1989 CB 264/SE30 Specification 2.0 Hardware Description 2.1 Overview The Colorboard 264/30's function is to provide the Macintosh SE/30 user with a low cost, versatile, high resolution frame buffer. The Colorboard 264/SE30 supports pixel depths of 1, 2, 4 and 8-bit in it's standard configuration with 24-bit becoming available with the addition of the video memory expansion option. Added features include RasterOps Virtual Screen, hardware zooming of 1X, 2X and 4X and hardware panning for full memory utilization and fast image enlargement. 2.2 Features Switchable Standard Resolutions of - 640 x 480 -ZZZxYYY 64K or 256K ROM Available Pixel Depths of 1, 2, 4, 8 and 24-bit {optional) Occupies SE/30's '030 Direct Slot 256 Colors Displayable from a 16.7 Million Color Palette {standard) 16.7 Million Colors Displayable {with option) 35 and 48KHz Monitors Supported Standard Current Consumption of 1.5 Amps at 5 Volts RS-343A Compatible 15-Pin D-Submininature Connector {Same as Apple) Hardware Zoom of 1X, 2X, and 4X Hardware Pan Virtual Desktop 3 CB 264/SE30 Specification June 5, 1989 FCC Class B Certified Utilizes RasterOps "Video Back End" ASIC Separate H and V Sync Signals on the Video Connector for VGA Com patabi lity 3.0 Technical Data 3.1. Absolute Maximum Ratings Supply Voltage, VCC ...............................................................5.25 Volts Operating Ambient Temperature Range .............................. O °C to 60 °C Storage Temperature ............................................................. -65 °C to 150 °C ICC (Supply Current) ...............................................................1.5 A @ 5.0 V 3.2 Reference Drawings The following items should be referenced for detailed information on the Colorboard 264/SE3…