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Macintosh Llfx Logic Board Upgrade Overview

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Macintosh llfx Logic Board Up grade Overview The Macintosh® IIfxLogic Board RAM Cache memory subsystem, and NuBus™ expansion slots that can Upgrade gives users of Apple® a 40-megahertz 68882 floating-point accommodate a wide range of Apple Macintosh II and IIx computers all coprocessor. and third-party expansion cards, the advantages-including high­ In addition, the Macintosh Ilfx such as network interface and speed system performance and Logic Board Upgrade uses custom, graphics cards. Also, a new Pro­ advanced capabilities-of the dedicated input/output (I/O) cessor Direct Slot (PDS) provides a Macintosh IIfx. Overall, the processors. These processors direct interface for third-party Macintosh Ilfx Logic Board Up­ significantly boost system perfor­ options. grade enables the system to perform mance by managing low-level I/0 The Macintosh IIfx Logic Board up to four times faster than the tasks-for the Apple Desktop Bus�M Upgrade can be configuredwith Macintosh II or Macintosh IIx. floppy disk drives, and serial ports­ either 4 or 8 megabytes of RAM.* It is To provide the extremely fast that had been previously handled by compatible with the Macintosh Ilfx program execution and calculations the 68030 processor. Also, a dedi­ 4MB Memory Expansion Kit, the full that are characteristic of the cated SCSI/OMA (direct memory range of NuBus expansion cards, Macintosh IIfx, the Macintosh Ilfx access) controller improves perfor­ and virtually all current versions of Logic Board Upgrade incorporates a mance of the SCSI bus. Macintosh applications. very high-speed, 40-megahertz Like the Macintosh II and 'RAM must be purchased separately. See Product Details 68030 microprocessor, a 32K Static Macintosh IIx, the Macintosh Ilfx formore information. Logic Board Upgrade includes six Features Benefi ts Full 32-bit 68030 microprocessor, running at Offers increased levels of performance and �40 megahertz �system responsiveness over Macintosh II and -Built-in Paged Memory Management Unit Macintosh Ilx systems. (PMMU) Supports multitasking operating systems � such as A/UX®,Apple 's implementation of the UNIX® operating system. 68882 floating-pointmath coprocessor, Provides fastprocessing of complex �running at 40 megahertz �mathematical functions while complying with IEEE 80-bit floating-pointstandards . Built-in zero-wait-state 32K Static RAM Cache Accelerates system performance. � � Two dedicated l/0 processors Improves system efficiencyby handling low­ � �level tasks previously carried out by the 68030 microprocessor, and associated with the floppy disk drive(s), Apple Desktop Bus, and serial ports. Dedicated SCSI/OMA controller Improves performance of the SCSI bus. � � Built-in Processor Direct Slot (PDS) Provides a fast, 32-bit direct interface to the � �system bus for high-speed, third-party option cards. Six NuBus expansion slots Makes it easy to create custom configura­ � �tions to meet specific needs. (Cards are self­ configuring-theyrequire no DIP switches, and can be placed in any slot.) Six built-in ports: Provides support forpopular peripherals �-Two serial ports �without using NuBus expansion slots. -Two Apple Desktop Bus ports Provides access to LocalTalk™networks, -One SCSI port �which allow users to connect Macintosh Ilfx -One sound port systems to other computers and to LaserWriter® printers through the AppleTalk® network system. Supplies high-quality, four-voicedigital �sound that is compatible with all applications that use Macintosh sound. Features Benefits Support for 4 or 8 megabytes of RAM Gives users maximum flexibilityto configure � their� system with the amount of RAM that meets their application requirements. Gives users a choice of using either Apple Macintosh� IIfxRAM or compatible third-party RAM . 512K of ROM on a SIMM (Single In-Line Enables future 32-bit versions of the Memory� Module) including: Macintosh� operating system to address up to -32-bit addressing 4 gigabytes of memory. -Hierarchical File System Organizes document storage and allows -32-bit Color QuickDraw'" easy� access to files. Provides a consistent user interface throughout� the Macintosh family and enables color systems to display up to 16 million colors simultaneously. Macintosh user interface, including mouse, Makes most applications intuitive and easy icons� , windows, and pull-down menus to� learn. Reduces training and support costs. � Provides a consistent user interfaceacross applications� . MultiFinder® operating system Allows multiple applications to be opened � concurrently.� Lets users easily cut and paste information between� applications. Allows background tasks to be run while users� interact with applications in the fore­ ground. Software compatibility Lets users run virtually all Macintosh � software.� Product Details 68030 Processor 64-pin SIMMs. These memory modules differ Network Support Full 32-bit 68030 microprocessor runs at significantlyfrom those used in previous The Macintosh IIfxprovides fullROM �40 megahertz. Macintosh II computers. As a result, only Apple �suppor t for all Apple Talk protocols, and The 32-bit address bus provides up to Macintosh IIfxMemory Expansion Kits or third­ includes built-in serial ports for LocalTalk �4 gigabytes of address space. party memory expansion kits expressly made network connections. 256-byte, on-chip address and instruction forthe Macintosh Ilfx personal computer may � caches provide high levels of performance. be used with the Macintosh IIfxLogic Board Operating System Support Built-in PMMU supports virtual, shared, and Upgrade. Macintosh system software includes: �protected memory in operating systems that �-System Tools Version 6.0.5 or greater (the have been designed for it. NuBus Expansion Slots Macintosh operating system) Burst mode RAM access enables groups of NuBus provides a multiplexed 32-bit address -Printer disk (printer drivers for all Apple �instructions and data to be read in fewer clock �bus and data bus on a single 96-pin connector. printers) cycles than are required in normal access mode. NuBus is self-configuring. Cards can be -Utilities disks (include utilities such as the �plugged into any slot and the system will Apple File Exchange, HD SC Setup, CloseView, 68882 Math Coprocessor automatically identifyand configure each card, Disk First Aid',M and Font/DA Mover) The 32-bit 68882 math coprocessor runs at without DIP switches or jumper wires. HyperCard®Version 1.2.5 (or greater) is �40 megahertz and accelerates the execution of The NuBus architecture supports data �included. � complex math functions, including trigono­ transfer rates of up to 37.5 megabytes per A/UXVersion 2.0 (optional) is compatible metric and logarithmic series. second. �with the Macintosh Ilfx. ROM SCSI (Small Computer System Interface) A 512K ROM SIMM socket on the logic SCSI is a high-performance interface bus �board provides an easy upgrade path to future �used to connect hard disks and other versions of ROM SIMMs. SCSI-based devices, such as the AppleCD SC® CD-ROM drive and the Apple Scanner, to the RAM Macintosh Ilfx. Up to seven SCSI peripherals, A minimum of 4 megabytes and a maximum including an internal hard disk, can be �of 8 megabytes of RAM can be installed into a connected. Macintosh IIfx Logic Board Upgrade. The Macintosh Ilfx SCSI subsystem is As denser, 4-megabit and 16-megabit RAM �managed by a dedicated SCSI/DMA controller �chips become available, RAM can be increased to increase system efficiency. to 32 and 128 megabytes, respectively. The SCSI l/0 subsystem can provide data The Macintosh IIfxLogic Board Upgrade �transfer rates in excess of 3 megabytes per �uses 80-nanosecond RAM chips mounted on second. System Requirements To use the Macintosh IIfx Logic A Macintosh II or Ilx personal RAM from eitherthe Apple � � Board Upgrade, you'll need: computer Macintosh IIfx 4MB Memory Expansion Kit (M0376LL/A) or third-party memory expansion kits expressly made forthe Macintosh IIfxpersonal computer. The followingchart shows the possible configurationsand the upgrade required for each one. Starting configuration Required upgrade Upgraded configuration Macintosh II or IIx personal Macintosh IIfx Logic Board Macintosh IIfxpersonal � �computer with 1, 2, or 4 mega­ �Upgrade (M0375LL/A) computer with 4 megabytes bytes of RAM Macintosh IIfx 4MB Memory of RAM �Exp ansion Kit (M0376LL/A) Macintosh II or IIx personal Macintosh IIfx Logic Board Macintosh IIfx personal �computer with 5 or 8 megabytes �Upgrade (M0375LL/A) �computer with 8 megabytes of RAM Two Macintosh IIfx4MB of RAM �Memory Expansion Kits (M0376LL/A) Technical Specifications Processor 1/0processor (IOP) chips SCSI interface uses a 50-pin 68030, 32-bit architecture Two IOP chips are standard cell �internal connector and a DB-25 � 40-megahertz clock speed �implementations of a 2-megahertz connector forthe firstexternal � Burst mode RAM access 6502. The IOP chips manage the device; all subsequent SCSI-based � Two 256-byte, built-in floppydisk drive(s) (SWIM chip), peripherals use standard SCSI-to­ �instruction and data caches the Apple Desktop Bus, and the SCSI interface cables (Harvard architecture) serial ports (SCC chip). Stereo sound jack � Coprocessor SCSl/DMAcontroller Sound generator 68882 floating-point Standard cell implementation Apple's custom digital sound � � coprocessor (IEEE standard- of 53C80 SCSI chip and DMA �chip provides 8-bit stereo 80 bits precision) control logic. The SCSI/DMA chip sampling at 44.1 kilohertz, and manages the SCSI bus. includes four-voicewave-table Static RAMCache synthesis-capable of
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