'(( July 10, 1986 CONTENTS • (":(~ PART 1 Freeport Product Description PART 2 Freeport System: Comparison with MacPlus PART 3 Main Lo&f c Board (Mother Board) PART 4 Hi&h Performance Expansion Slot PART 5 Apple DeskTop Bus and Human Interface Peripherals PART 6 SCSI Interface to Hard Disk PART 7 Floppy Disk Interface PART 8 Serial Ports PART 9 Customizable VO Port, Removable Door PART 10 Power (Current) Bud1et PART 11 Software and Firmware PART 12 Miscellaneous ( f PART 1 Freeport Product ·Description - 7-10-86 PART 1 Freeport Product Description General l=reepon is an enhanced Macintosh Plus that suppons internal and extrmal customized expansion options includina: from Apple Computer.Inc. • Inu:mal 20MB Hard Disk or a Second Internal Sony Floppy Disk Drive and from third party vendors • • External Video Board • Ethernet/Token Ring Interface Board I, ~; • Modem Board • Accelerator/Coprocessor Boards • Etc.(This list is suggestive only, not limiting) Freepon suppons the same peripherals as Macintosh Plus except that the keyboard and mouse follow the new corporate Apple DeskTop Bus design. ',r' ! Product Desi2n External Features • Same overall form factor as Macintosh Plus • Apple DeskTop Bus keyboard and mouse (two connectors at rear) • Floppy disk slot meam1ined. compatible wilh new fro& styling •Restyled front bezel and rear housing, ventilalion slots added for better cooling • Optional pluggable slot in front housing, for a second internal floppy disk drive • Plastic snap-out door at rear to support out-of-box I/O Internal Features • Optional hard disk or optional second Sony, above the standard Sony disk drive - • Higher capacity power supply to support die optional floppy or hard disks •Connectors for the optional floppy, optional ~CSI hard disk. and expansion hardware (daughterboard or external) • Fan for cooling •New swing-away logic board mounting to allow insertion with third-party daughterboard present Hardware Logic Board • 8 MHz 68000 CPU • Enhanced memory access yields 16.8% increase.cl speed when operating from RAM • Gate array implementation of PAL and discrete logic devices * Seven year lithium bane:y for clock and calendar * Internal- two Floppy Disk and SCSI connectors • Extcmal--two Serial, two Apple DeskTop Bus, SCSI, Floppy Disk. and Sound pon connectors Analo& Section * New 80 Wan. wide input range power supply * Improved display sweep section *Fan Software System * New ROM with minimum changes from Macintosh Plus * Changes include new SCSI manager, support for Apple DeskTop Bus, and modifications to the AppleTalk drivers to support the new Apple serial pon azchiteemrc Application • r·· '· * Boot chooser to allow stan·up drive selection * Compatible with Macintosh Plus Options • Internal 20 Megabyte SCSI hard disk compatible with SCSI HD-20, or a second SOOK internal floppy disk drive Freeport FRONT BEZEL '( .. . .... ..... ~ ~ .. . . . • : .. T~ YE…

FREEPORT S'JPPLEMENTAL DOCUMENTATION Decem~er, 1986 Introduction The documentation contained herein will cupplem~nl-Jf'1~i:l(f!~r: . . that you received earlier. All duplicate infonnation co~ iA ttus document should supercede all previous doeun,ents. The design of the Freeport is now stable. Changes bot.ween .PYT:2.· Lmits (thA units you received in early November) and producti0'1·UAiti: wiii tie minor and should not effect your product plans. You sh~u!d-ha'\jt~.r,\I reservations about committing to your designs from thi~ ·poin' ipil~ar d;: ~: ·_r;.:;·• .doc~Jmentation should accompany the final .pre-production. .pr~rtti.oG Freeport (Called a •pvr unit). ·· Changes between the various prototype levels (DVT1 , DY..Tf, -~nd PVT/Production) are all detailed in this document. Documentation Outline Th.· ·;e sections are replaced (from the early package):. ·oiffer~p~~f·;::: be1ween Freeport and Macintosh 512K, Macintosh Plus"·Cl.f1J.i;~t!1·:~l~i.;n updated and redistributed to different sections), •Expansion..·,P.n!t ~'mr.f.,~ic:;-t' diagram replaced (See amended and enhanced informatio.n. !:·f!IO~l); ~f~bl and ADB software specifications {specifications updated). This documentation packet includes the following sections: I. Rom Daugtherboards II. Changes between DVT1 and DVT2 prototypes Ill. Changes between DVT2 and PVT/Production units IV. New Expansion Features (of Freeport) - Description, Warranty Issues V. Custom Card Expansion - Features of the 96 piR: ~~·~:;:;t·~·: VI. Disk Drive Expansion - SCSI Hard Disks, SOOK Drives VII. Apple Desktop Bus - Input Device Bus VIII. Feature Changes From Previous Macintosh Syst~nts IX. General System Enhancements X. Power Budget Considerations XI. Heat Dissipation Guidelines,_, XII. Memory Map · XIII. System Timing Diagrams XIV. Mechanical Drawings "X>J. = dest SCSI Software Specification . XVI. :..cttest ADB Software Specification 12186 .i I. ROM daughterboarCls Enclosed with this docum~tiJiofl are a new set of.ROMS. Also included is a new System Tools disk. JlJ~.:RQtAs will work properly in your ~VT units only. The final Freeport systemw.iU, .lflip with 256K of ROM which will plug directly into the ROM sockets on th.l::Jogic board. Because EPROMs of this size are not readily available, we. hav~(Ovided you with a ROM daughterboard that holds four EPROMs. Tak•ft;t9Qether, the four EPROMs contain the ROM image of the final 256K FreeDOrt ROM. Since you may be developiflg;expansion card produds which might interfere with the ROM daughterboard, we have also provided you with a set of masked ROMs that are electrically and mechanically identical to the final ROM. However, these ROMs have many known bugs. They are provided for your convenience only~·· 12186 Apple Computer Confidential Page 2 II. Changes between first (DVT1) and second (DVT2) prototypes • Serial Ports are now Macintosh Plus compatible (This change was previously detailed in section 8 of the •Freeport Hardware Preliminary Notes"). • 96 Pin expa…