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Microsoft RAMCard C-97200 User Manual

Peripheral for apple ii
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Summary of Contents for Microsoft RAMCard C-97200

  • Page 2 RAMCard ™ A Peripheral for the Apple II® Produced by Microsoft Microsoft Consumer Products A division of Microsoft, Inc. 10700 Northup Way C-97200 Bellevue, WA 98004...
  • Page 3 Zilug, Inc. D e s i g n e r RAMCard was designed for Microsoft Consumer Products by Don Burtis of Burtronix, Villa Park, California. Microsoft Consumer Products is grateful to Burtronix for its contribution to making RAMCard a reality.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS Registration Information RAMCard Warranty Service Information CHAPTER 1 INTRODUCTION Important Note for DOS 3.2 Users and for 13-sector CP/M Users CHAPTER 2 INSTALLATION INSTRUCTIONS Opening your Apple II Removing a chip Inserting RAMCard CHAPTER 3 USING RAMCard How To Use Your Existing Software Compatible Software...

  • Page 5: Registration Information

    (90) day period or 30 days, which- ever is longer. If this product should require service, return it to Microsoft Consumer Products, 400 108th Ave. NE, Suite 200, Bellevue, Washington 98004, postage paid, along with an explanation of the suspected defect. MCP will promptly handle all warranty claims.

  • Page 6: Service Information

    If your RAMCard requires repair, please return it to the dealer from whom it was purchased. If it is not possible to return the RAMCard to your dealer, you may send it directly to Microsoft Consumer Products. If the repair is required during the warranty period, please enclose proof of purchase.

  • Page 8: Chapter 1 Introduction

    16K memory modules to bring your Apple II up to 48K. RAMCard is compatible with Microsoft Consumer Products SoftCard, a circuit card for the Apple which contains a Z80 microprocessor, and allows you to run the CP/M operating system. RAMCard and Soft- Card together make a powerful combination that turns your Apple II into a full memory (56K), flexible (two microprocessors) microcomputer.

  • Page 9: Important Note For Dos

    Card is installed. This means that the BASIC on the Apple Firmware Card will no longer be available. To use RAMCard with the Microsoft SoftCard and CP/M, you must have a 16-sector system. This is because you must use the CPM56 program to update your CP/M system to 56K.

  • Page 10: Chapter 2 Installation Instructions

    INSTALLATION INSTRUCTIONS This chapter gives step-by-step instructions for installing RAMCard. We recommend that you read all the instructions first to acquaint yourself with the overall procedure. Then, perform each step with care exactly as described. Opening Your Apple II Since RAMCard is to be installed inside your Apple II, you must remove the cover of your Apple before you start.

  • Page 11: Removing A Chip

    2 . Remove the cover from your Apple II. Pull up on the rear edge of the cover until the fasteners at the rear corners pop apart. Do this only firmly enough to separate the fas- teners, then stop. Do not pull up any further. 3 .
  • Page 12 You should see: A big silver- or gold-colored box (the power supply cover) along the left side. Eight long, narrow slots (edge-connector receptacles), green or black outside with gold-plated contacts inside, located perpen- dicular to and against the back wall of the Apple II enclosure. The slots are numbered from left to right, from 0 to 7.
  • Page 13 REMEMBER: Touch the power-supply cover to discharge static electricity on body before grasping the chip. your Remove the memory chip carefully. Be sure you do not damage the chip or the circuit board sockets in any way. Avoid touching the pins on the chip with your fingers because static electricity on your body may damage the chip.

  • Page 14: Inserting Ramcard

    upward or lateral force than necessary to remove the chip gently so that the chip will not be damaged. Inserting RAMCard Inserting RAMCard is actually two separate procedures. First, you insert the plug at the end of the connector cable into the socket left empty when you removed the chip.
  • Page 15 Notice the connector cable at the bottom left corner of this card. At the end of the cable is a plug. Notice that RAMCard also has an I/O connector strip along one edge. The cable plug will go into the vacant memory chip space inside your Apple II.

  • Page 16: Inserting The Card

    If the plug does not slide into the holes easily, remove it, reposition the pins, then app]y gentle pressure until the plug is seated. A very slight wiggle may be used to help seat the plug. But, any lateral movement may damage a pin so avoid wiggling if you can. If you must wiggle the plug to seat it fully, be sure the pins are lined up properly first, then wiggle only very slightly and very slowly.
  • Page 17 Set the connector strip on the bottom edge of RAMCard into Slot 0. Be sure that the connector on the card is centered in the slot. 3. Press RAMCard into place. Do not wiggle RAMCard from side to side! If necessary, you can wiggle the card lengthwise, from back to front to back, to help seat the card into Slot 0 completely.

  • Page 18: Chapter 3 Using Ramcard

    USING RAMCard For some Apple II configurations, installing RAMCard will change the procedures you use to run your existing software. This chapter outlines which configurations of the Apple II are affected by installing RAMCard and what software procedures you need to change.

  • Page 19: Compatible Software

    CPM56 utility to take advantage of RAMCard’s extra memory. The CPM56 utility is found only on the 16-sector CP/M master in the SoftCard package. Refer to the Microsoft SoftCard Manual, Using Apple CP/M with the Apple Language Card,” page 1-13, for instructions for using the CPM56 utility.

  • Page 20: Some Compatible Packages

    Some of the software packages that can be used with RAMCard are: CP/M, which also allows you to use: Microsoft’s COBOL-80 Microsoft’s FORTRAN-SO Microsoft’s BASIC Compiler Microsoft’s Assembly Language Development System Applesoft BASIC Integer BASIC VisiCalc Apple Pascal system Apple FORTRAN...

  • Page 22: Chapter 4 Addressing Ramcard

    CHAPTER 4 ADDRESSING RAMCard The information in this chapter is highly technical and is intended as reference material only. This chapter describes the addressing of RAMCard. Memory maps showing the addresses used for RAMCard RAM and Apple on-board ROM and a description of the control addresses and their functions make up most of the information.

  • Page 23: Memory Maps

    Addressing information is divided into three sections in this chapter. The first section shows memory maps. The maps show the memory addresses for the functions called through control addresses. The sec- ond section describes these control addresses, which provide memory mode selection, RAM write-enable/-protect, and bank switching.
  • Page 24 only 12K ($D000-$FFFF) of address space is available for 16K RAM. Using the control addresses to switch between the two 4K banks allows you to address 8K RAM with only 4K of address space. The remainder of the RAMCard RAM ($E000-$FFFF) is di- rectly addressable.
  • Page 25 Selects on-board ROM read and write-protects RAM. Selects RAMCard RAM read. Two or more successive reads to the address write-enables RAM. When ROM is selected, the Apple II on-board ROM is selected for the address space $D000-$FFFF. Refer back to the memory maps in Sec- tion 3.1 for an illustration of these relationships.

  • Page 26: Additional Technical Details

    $C083 16253 0011 — $C088 —16248 1000 $C089 —16247 1001 $CO8A -16246 1010 $CO8B —16245 1011 NOTE: If RAMCard RAM was already in a write-enabled state, only a angle access of a write-enable control address ($C081, $C083, $C089, $C08B) is necessary to remain in a write-enable state until a write- protect control address is accessed.

  • Page 27: Led Indicators

    READ ENABLE — When RAMCard RAM is read-enabled, sta- tus bit 1 will be high. When Apple on-board ROM is enabled, status bit I will be low. This state applies immediately following power on. When RAMCard RAM is read-enabled, an INH signal generated by the ICs in sockets U12 and U13 disable the ROMs on the Apple motherboard.

  • Page 28: Ramcard Hardware Details

    RAMCard Hardware Details This section describes how RAMCard handles its functions and indi- cates its States. The connector cable provides the RAMCard memory chips access to the multiplexed addresses and to a timing signal which is not available through the 50 pin I/O edge-connector. Addresses for RAMCard memory chips are provided by the Apple motherboard address mux.

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