Commodore Amiga 2630 User Manual
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Commodore Amiga 2630 User Manual

Commodore Amiga 2630 User Manual

Accelerator card
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ACCELERATOR CARD
User's Guide

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  • Page 1 ACCELERATOR CARD User’s Guide...
  • Page 2 Copyright © 1989 by Commodore Amiga, Inc. All Rights Reserved. This document may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine readable form, without prior consent, in writing, from Commodore-Amiga, Inc.

  • Page 3: Table Of Contents

    Table of Contents 1. Introduction......... . . 1 2.

  • Page 5: Introduction

    1. Introduction The Amiga computer system was designed so that it can be easily upgraded for use with other members of the Motorola® 68000 CPU family. By installing the A2630 accelerator card, your A2000 is upgraded to a 68030 CPU. This 32-bit 68030 CPU vastly increases processing speed over the 68000 CPU in several impor- tant ways: •...

  • Page 7: How To Install The A2630 Accelerator Card

    2. How to Install The A2630 Accelerator Card WARNING: Unplug the Amiga 2000 before installing the A2630. Installing the A2630 with the power on could cause injury to the installer and damage to the equipment. Commo- dore will not be responsible for any damages caused by im- proper installation of the A2630.
  • Page 8 Remove the center screw from the rear of the Amiga. Be careful to remove the correct screw as shown. Center Screw Figure 2 Center screw on the rear of the Amiga Turn the Amiga so that you are facing the front of the machine. Grasp the cover on both sides, slide it towards you, and lift upward.
  • Page 9 If you see a large label which says COMMODORE AMIGA 2000, the assembly number, and MADE IN GERMANY (BSW), you have a 4-layer motherboard. In this case, consult an authorized service center to have your A2630 installed.

  • Page 10: Installing The A2630

    Installing the A2630 The A2630 accelerator card fits into the 86-pin CPU slot next to the existing 68000 CPU. To locate this slot, turn the Amiga so that the front of the machine faces you. To your right will be the disk drive plate and power supply.
  • Page 11 The A2630 slides into this 86-pin slot. Carefully line up the edge of the card with the plastic groove at the front of the machine. Slide the card down so it fits into the 86-pin slot. Make sure that the card slides free of all cables and obstacles at the back of the machine.

  • Page 13: Operation

    3. Operation Plug in your A2000 and peripherals and turn the power on. Hold down both mouse buttons. The A2630 will present you with a screen of boot-up options. AmigaDOS on 68000 AmigaDOS on 68030 Amiga UX Release both mouse buttons. Move the cursor to the box next to your selection and click either mouse button to make the selection.

  • Page 14: Compatibility And Testing

    Compatibility and Testing As soon as the Amiga is turned on or comes out of reset, the A2630 takes over from the 68000. The 32-bit on-card memory will show up as normally auto-configured memory, and it will always be the first memory to be auto-configured by the operat- ing system.

  • Page 15: Notes To Software Developers

    The A2630 memory is located in the normal expansion address range and is part of the standard system limit of 8 megabytes of expansion bus memory. If your A2630 has 2MB of RAM, your system will only support an additional 6MB (for instance, a Bridgeboard and a 4MB RAM board).
  • Page 16 • Be sure to test everything written on a 68030 based Amiga on a 68000 based Amiga. The 68030 requires word alignment only for its instructions, but the 68000 requires word data on the stack to be word aligned. Therefore, it is possible to write non-aligned code that runs properly on the 68030 but not on the 68000.

  • Page 17: Appendix A: Description Of The A2630 Board

    Appendix A: Description of the A2630 Board This appendix outlines important jumpers and chip locations on the A2630 board. You should refer to the information in this appendix when making any changes to the board’s default con- figurations, such as changing the math chip or installing addi- tional RAM.
  • Page 18 Figure 7 A2630 Board...
  • Page 19 J304 OSMODE. As shipped, with the jumper off, the system autoboots AmigaDOS. If a jumper is set, the system will autoboot UNIX (provided the appropriate software is sup- plied on a hard drive or magnetic tape). Memory Connectors There are two 64-pin connectors on the back of the A2630 board in locations CN300 and CN301.

  • Page 21: Appendix B: Installing A Faster Math Chip

    Appendix B: Installing a Faster Math Chip NOTE: Installation of this option should be performed by qualified service personnel. Improper installation may void your warranty. The A2630 is shipped with a 25 MHz 68882 math chip. However, the A2630 will support a faster 68881 or 68882 math chip. Such a device may greatly speed up math intensive operations over the standard A2630 math chip.
  • Page 22 If the new clock module for the FPU is installed, the jumper on J202 must be removed, as described in Appendix A. As shipped, the A2630 has a jumper set on J202. This drives both the FPU and the CPU at the same speed (25 MHz). Once the installation of the chip and clock module is complete, replace the A2630 in your Amiga, and power up the system.

  • Page 23: Appendix C: Installing An Additional 2 Mb Of Memory

    Appendix C: Installing An Additional 2 MB of Memory NOTE: Installation of this option should be performed by qualified service personnel. Improper installation may void your warranty. The following docs not apply if your A2630 comes shipped with 4 megabytes of memory. The A2630 supports an additional 2 megabytes of memory (memory type is 414256-10 Zip-style package (100ns)).

  • Page 25: Appendix D: Technical Specifications And Schematics

    Appendix D: Technical Specifications and Schematics Processor Motorola 68030 running at 25 MHz. Coprocessor(s) 25 MHz 68882 floating point math coproces- sor. A 33 MHz 68881 or 68882 can also be used. Crystal type for math coprocessor is industry standard 4 pin oscillator can with TTL compatible output level.
  • Page 33 Commodore Business Machines, Inc. 1200 Wilson Drive • West Chester, PA 19380 Commodore Business Machines, Inc. 363183-01 3470 Pharmacy Avenue • Agincourt, Ontario M1W 3G3 6/89...

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