chromatics 070203A CGC 7900 Series Hardware Reference Apr82 free download

File name 070203A_CGC_7900_Series_Hardware_Reference_Apr82.pdf

HARDWARE REFERENCE MANUAL CGC 7900 SERIES COLOR GRAPIJICS COMPUTERS CHROMATICS CGC 79~~ COLOR GRAPHICS COMPUTER SYSTEM HARDWARE REFERENCE MANUAL April, 1982 Copyright (C) 1982 by Chromatics, Inc. 2558 Mountain Industrial Boulevard Tucker, Georgia 3~084 Phone (4~4) 493-7~00 TWX 810-766-8099 This document, submitted in confidence, contains proprietary information which shall not be reproduced or transferred to others or used for manufacturing or any other purpose without prior written permission of Chromatics, Incorporated. This manual is Chromatics Part Number 070203A. It was previously released as the Preliminary OEM Manual. This edition contains corrections and new information. PUBLICATION COMMENT FORM Please use this sheet to give us feedback on the enclosed documentation. Your comments on errors or omissions, suggested changes, format of presentation, etc., will be helpful in preparing future manuals. Wherever possible, refer to specific page numbers in your comments below. After completing this form, mail to: Chromatics, Inc. 2558 Mountain Industrial Boulevard Tucker, GA 30084 Attn: R&D Department Name: Date: ____________ Company Name: Name/Model Number of Product: ______________________________ Title of Publication: Date of Publication Release: Preliminary? _____ Page No. Comments TABLE OF CONTENTS INTRODUCTION 1 CGC 7900 HARDWARE OVERVIEW 2 CPU CARD 3 EPROM/RASTER PROCESSOR CARD 4 BUFFER MEMORY CARDS 5 IMAGE MEMORY CARDS 5 CONFIGURATION OF MEMORY CARDS 5 VIDEO CONTROL CARDS 6 DMA/PIO 7 SERIAL PORT CONTROLLER 8 POWER SUPPLY 9 CGC 7900 SYSTEM MEMORY MAP (Illustration) 11 CGC 7900 MEMORY MAP 13 EPROM 14 EPROM INSTALLATION 15 . IMAGE MEMORY 16 PLANE MODE 17 Z MODE 18 COLOR STATUS MODE 20 COLOR LOOKUP TABLE 22 COLOR LOOKUP TABLE ADDRESSES 23 OVERLAY MEMORY ADDRESSING 24 OVERLAY CHARACTER CELL ADDRESSES 26 CGC 7900 DETAILED MEMORY MAP 27 CONFIGURING 128K BUFFER MEMORY CARDS 31 CONFIGURING 512K BUFFER MEMORY CARDS 32 BUFFER MEMORY CARD ADDRESS SELECTION 33 CONFIGUR