Macintosh LC 475 And Macintosh Quadra 605
Developer NoteMacintosh LC 475 andMacintosh Quadra 605 Developer NoteDeveloper Press Apple Computer, Inc. 2000
Apple Computer, Inc. 1993, Apple Computer, Inc.All rights reserved.No part of this publication may bereproduced, stored in a retrieval system,or transmitted, in any form or by anymeans, mechanical, electronic,photocopying, recording, or otherwise,without prior written permission ofApple Computer, Inc. Printed in theUnited States of America.The Apple logo is a registeredtrademark of Apple Computer, Inc.Use of the “keyboard” Apple logo(Option-Shift-K) for commercialpurposes without the prior writtenconsent of Apple may constitutetrademark infringement and unfaircompetition in violation of federal andstate laws.No licenses, express or implied, aregranted with respect to any of thetechnology described in this book.Apple retains all intellectual propertyrights associated with the technologydescribed in this book. This book isintended to assist applicationdevelopers to develop applications onlyfor Apple Macintosh computers.Apple Computer, Inc.20525 Mariani AvenueCupertino, CA 95014408-996-1010Apple, the Apple logo, APDA,AppleLink, AppleTalk, LaserWriter,Macintosh, and SANE are trademarks ofApple Computer, Inc., registered in theUnited States and other countries.AppleCD, AppleColor, Apple DesktopBus, Apple SuperDrive, Finder,Macintosh Centris, Macintosh Quadra,Performa, PlainTalk, PowerBook,QuickDraw, and System 7.0 aretrademarks of Apple Computer, Inc.Classic is a registered trademarklicensed to Apple Computer, Inc.Adobe Illustrator and PostScript aretrademarks of Adobe SystemsIncorporated, which may be registeredin certain jurisdictions.America Online is a service mark ofQuantum Computer Services, Inc.CompuServe is a registered servicemark of CompuServe, Inc.FrameMaker is a registered trademarkof Frame Technology Corporation.Helvetica and Palatino are registeredtrademarks of Linotype Company.Internet is a trademark of DigitalEquipment Corporation.ITC Zapf Dingbats is a registeredtrademark of International TypefaceCorporation.Motoroloa is a registered trademarkof Motorola Corporation.NuBus is a trademark of TexasInstruments.Simultaneously published in the UnitedStates and Canada.LIMITED WARRANTY ON MEDIA ANDREPLACEMENTIf you discover physical defects in themanual or in the media on which a softwareproduct is distributed, APDA will replacethe media or manual at no charge to youprovided you return the item to be replacedwith proof of purchase to APDA.ALL IMPLIED WARRANTIES ON THISMANUAL, INCLUDING IMPLIEDWARRANTIES OF MERCHANTABILITYAND FITNESS FOR A PARTICULARPURPOSE, ARE LIMITED IN DURATIONTO NINETY (90) DAYS FROM THE DATEOF THE ORIGINAL RETAIL PURCHASEOF THIS PRODUCT.Even though Apple has reviewed thismanual, APPLE MAKES NO WARRANTYOR REPRESENTATION, EITHER EXPRESSOR IMPLIED, WITH RESPECT TO THISMANUAL, ITS QUALITY, ACCURACY,MERCHANTABILITY, OR FITNESS FOR APARTICULAR PURPOSE. AS A RESULT,THIS MANUAL IS SOLD “AS IS,” ANDYOU, THE PURCHASER, ARE ASSUMINGTHE ENTIRE RISK AS TO ITS QUALITYAND ACCURACY.IN NO EVENT WILL APPLE BE LIABLEFOR DIRECT, INDIRECT, SPECIAL,INCIDENTAL, OR CONSEQUENTIALDAMAGES RESULTING FROM ANYDEFECT OR INACCURACY IN THISMANUAL, even if advised of the possibilityof such damages.THE WARRANTY AND REMEDIES SETFORTH ABOVE ARE EXCLUSIVE AND INLIEU OF ALL OTHERS, ORAL ORWRITTEN, EXPRESS OR IMPLIED. NoApple dealer, agent, or employee isauthorized to make any modification,extension, or addition to this warranty.Some states do not allow the exclusion orlimitation of implied warranties or liabilityfor incidental or consequential damages, sothe above limitation or exclusion may notapply to you. This warranty gives youspecific legal rights, and you may also haveother rights which vary from state to state.
ContentsFigures and TablesPrefacevAbout This NoteviiContents of This NoteviiSupplemental Reference DocumentsConventions and AbbreviationsixTypographical ConventionsixSpecial ElementsixStandard AbbreviationsxChapter 1Introductionvii1Summary of Features2Appearance3Views of the Macintosh LC 475 Computer3Views of the Macintosh Quadra 605 ComputerExternal Video Monitors5Video Connector6Monitor Sense Codes7RAM Expansion7RAM Configurations7RAM SIMMs8RAM SIMM Signal Assignments8RAM SIMM Mechanical Specifications11Video RAM13Serial I/O Ports13Floppy Disk Drive14SCSI Bus15ADB Ports16Sound17Sound Input Jack17Sound Modes18Sample Rates18Keyboard18Expansion Slot194iii
Chapter 2Architecture21Block Diagram and ICs22Microprocessor22Custom ICs24MEMCjr IC24PrimeTime IC24DFAC II IC25Cuda IC25Antelope IC25Address Maps26RAM Addresses26Video RAM Addresses26Expansion Card Addresses26Video Timing Parameters28Chapter 3Expansion33The Expansion Slot34Pin Assignments34Signal Descriptions36Compatibility With Older CardsThe Expansion Card39Mechanical Design40Card Connectors40Power for the Card40Address Space40Bus Master on a Card41Chapter 4Software43ROM Software44Modularity44Machine Identification44New Memory Controller45New Memory Maps45New Video ICs45New Sound IC and PrimitivesADB and Power ManagementSystem Software46System Enabler46Enhanced QuickDraw46IndexFoldoutsiv3947514545
Figures and TablesChapter 1Chapter 2Chapter 3Introduction1Figure 1-1Figure 1-2Figure 1-3Figure 1-4Figure 1-5Figure 1-6Figure 1-7Front view of the Macintosh LC 475 computer3Back view of the Macintosh LC 475 computer4Front view of the Macintosh Quadra 605 computerBack view of the Macintosh Quadra 605 computerRAM configurations8RAM expansion SIMM12Serial port sockets13Table 1-1Table 1-2Table 1-3Table 1-4Table 1-5Table 1-6Table 1-7Table 1-8Table 1-9Table 1-10Comparisons with the Macintosh Centris 650 computerMaximum pixel depths for the two VRAM sizes5Pin assignments on the external video connector6Monitor sense codes7Signal assignments on the RAM SIMM socket9Serial port signals14Pin assignments for the internal floppy disk connectorPin assignments for the internal and external SCSIconnectors16ADB connector pin assignments17Reset and NMI key combinations19Architecture21Figure 2-1Figure 2-2Figure 2-3Block diagram23Simplified 24-bit and 32-bit address mapsVideo timing diagram29Table 2-1Table 2-2Table 2-3Monitors supported28Video timing parameters for smaller monitorsVideo timing parameters for larger monitorsExpansion15303133Generating the card select signalTable 3-1Table 3-2Table 3-3Pin assignments for the expansion connector35Expansion connector signal descriptions37Power available for the expansion card40Foldout 1Foldout 2Foldout 3227Figure 3-1Foldouts444151Expansion card design guideExpansion card component height restrictionsExpansion card assembly guidev
P R E F A C EAbout This NoteThis developer note provides information about the Macintosh LC 475 andMacintosh Quadra 605 computers, Apple’s lowest-priced models withMC68040 microprocessors. Those computers are low-profile models withseparate video monitors.NoteWhile every attempt has been made to verify the accuracy of theinformation presented here, it is subject to change without notice.The primary reason for releasing this type of product informationis to provide the development community with essential productspecifications, theory, and application information for the purposeof stimulating work on compatible third-party products. Contents of This Note0The information is arranged in four chapters, an appendix, an index, and a setof foldouts: Chapter 1, “Introduction,” gives a summary of the features and describesthe external features of the Macintosh LC 475 and Macintosh Quadra 605computers. Chapter 2, “Architecture,” describes the internal organization of thecomputers. It includes a block diagram, a simplified address map, anddescriptions of the integrated circuits that are specific to these computers. Chapter 3, “Expansion,” describes the expansion slot and gives guidelinesfor designing an expansion card to plug into it. Chapter 4, “Software,” summarizes the new features of the ROM softwareand the system software. The foldouts provide engineering specifications and mechanical drawingsfor the expansion card.Supplemental Reference Documents0To supplement the information in this developer note, developers should havecopies of the appropriate Apple reference books, including Inside Macintosh,Volumes IV, V, and VI; Guide to the Macintosh Family Hardware, second edition;and Designing Cards and Drivers for the Macintosh Family, third edition. Thesebooks are available in technical bookstores and through APDA.vii
P R E F A C EThe Macintosh LC 475 and Macintosh Quadra 605 computers are similar tocertain earlier Macintosh models, so you should also have the developer notethat describes those earlier machines: Macintosh Developer Note Number 3, APDA catalog number R0461LL/ADeveloper notes are available from APDA and are also on the developer CDs;Number 3 has been available since March 1993.NoteMacintosh Developer Note Number 3 covers the Macintosh Color Classic ,the Macintosh LC III, the Macintosh PowerBook 165c, the MacintoshCentris 610 and 650, and the Macintosh Quadra 800. APDA is Apple’s worldwide source for over three hundred developmenttools, technical resources, training products, and information for anyoneinterested in developing applications on Apple platforms. Customers receivethe quarterly APDA Tools Catalog featuring all current versions of Appledevelopment tools and the most popular third-party development tools.Ordering is easy; there are no membership fees, and application forms are notrequired for most of our products. APDA offers convenient payment andshipping options, including site licensing.To order products or to request a complimentary copy of the APDA ToolsCatalog, contactAPDAApple Computer, Inc.P.O. Box 319Buffalo, NY 14207-0319viiiTelephone800-282-2732 (United States)800-637-0029 (Canada)716-871-6555 (International)Fax716-871-6511AppleLinkAPDAAmerica nk.apple.com
P R E F A C EConventions and Abbreviations0This developer note uses the following typographical conventions andabbreviations.Typographical Conventions0New terms appear in boldface where they are first defined.Computer-language text—any text that is literally the same as it appears incomputer input or output—appears in Courier font.Hexadecimal numbers are preceded by a dollar sign ( ). For example, thehexadecimal equivalent of decimal 16 is written as 10.Special Elements0This developer note has three kinds of special paragraphs—Note, Important,and Warning—and a sidebar, as shown on this page.NoteA note like this contains information that is interesting but not essentialfor an understanding of the text. IMPORTANTA note like this contains important information that you should readbefore proceeding. W AR N I N GA note like this directs your attention to something that could causedamage or result in a loss of data. ix
P R E F A C EStandard Abbreviations0When unusual abbreviations appear in this book, the corresponding termsare also spelled out. Standard units of measure and other widely usedabbreviations are not spelled out. Here are the standard units of measure usedthis developer sHere are other abbreviations used in this developer note:x nhexadecimal value nACalternating currentADBApple Desktop BusCD-ROMcompact-disk read-only memoryCLUTcolor lookup tableEMIelectromagnetic interferenceFPUfloating-point unitICintegrated circuitI/Oinput/outputLSlow-power Schottky (used as a standard for IC device loads)MMUmemory management unitMOSmetal-oxide semiconductorNMInonmaskable interruptPWMpulse-width modulationRAMrandom-access memoryRMSroot-mean-squareROMread-only memorySANEStandard Apple Numerics EnvironmentSCSISmall Computer System Interface
P R E F A C ESCCserial communications controllerSIMMsingle inline memory moduleSWIMSuper Woz Integrated Machine, a custom IC that controls thefloppy disk interfaceTTLtransistor-transistor logic (used as a standard for ICdevice loads)VLSIvery large scale integrationVRAMvideo RAMxi
C H A P T E RFigure 1-0Listing 1-0Table 1-01Introduction1
C H A P T E R1IntroductionThe Macintosh LC 475 and Macintosh Quadra 605 computers bring the high performance of the MC68040 microprocessor to low-priced Macintosh models. Thesecomputers are low-profile designs, mechanically similar to the Macintosh LC III.Summary of Features1Here is a summary of the hardware features of the Macintosh LC 475 and MacintoshQuadra 605 computers: Motorola MC68LC040 microprocessor (no FPU) running at 25 MHz installed RAM capacity of 4 MB, expandable to 36 MB 1 MB ROM soldered to main logic board low-profile design with external video monitor built-in video hardware using separate video RAM internal hard disk with 80 MB or 160 MB capacity (or 230 MB on Macintosh LC 475 ),using the internal SCSI connector; external SCSI port for additional SCSI devices internal high-density floppy disk drive with 1.4 MB capacity standard Macintosh I/O ports: two serial ports, sound output jacks, a SCSI port, andan ADB port sound input jack internal speaker expansion slot for 96-pin or 114-pin expansion cards (accepts PDS cards designed forthe Macintosh LC series; not directly connected to the MC68LC040 processor)Electrically, the Macintosh LC 475 and Macintosh Quadra 605 computers are similar tothe Macintosh Centris 650. Table 1-1 compares the features of those computers.Table 1-1Comparisons with the Macintosh Centris 650 computerFeaturesMacintosh Centris 650Macintosh LC 475 andMacintosh Quadra 605Processor typeMC68LC040MC68LC040Processor speed25 MHz25 MHzAmount of RAM4 MB–136 MB4 MB–36 MBRAM expansion4 SIMMs1 SIMMAmount of VRAM512 KB–1 MB512 KB–1 MBSound capabilities8 bits/channel; mono in,mono record, stereo out8 bits/channel; stereo in,mono record, stereo outcontinued2Summary of Features
C H A P T E R1IntroductionTable 1-1Comparisons with the Macintosh Centris 650 computer (continued)FeaturesMacintosh Centris 650Macintosh LC 475 andMacintosh Quadra 605Floppy disk drive1 internal1 internalADB ports21Internal SCSI drives2 (hard disk, CD-ROM)1 (hard disk)External SCSI ports11Ethernetoptional, internalnoExpansion slots1 PDS,3 NuBus slots1 I/O slot(compatible with Macintosh LCseries PDS cards)Appearance1The Macintosh LC 475 and Macintosh Quadra 605 computers have similar lowprofile designs.Views of the Macintosh LC 475 Computer1The design of the Macintosh LC 475 computer is similar to that of the Macintosh LC III.Figure 1-2 shows the front of the Macintosh LC 475 computer. Figure 1-2 shows the backof the Macintosh LC 475 computer and identifies the I/O ports.Figure 1-1Front view of the Macintosh LC 475 computerFloppy disk driveAppearance3
C H A P T E R1IntroductionFigure 1-2Back view of the Macintosh LC 475 computerPower switchPower connectorVideo portPrinter portModem portSCSI portADB portSound output jackSound input jackViews of the Macintosh Quadra 605 Computer1The Macintosh Quadra 605 computer is about the same size as the Macintosh LC 475.Figure 1-3 shows the front of the Macintosh Quadra 605 computer. Figure 1-4 shows theback of the Macintosh Quadra 605 computer and identifies the I/O ports.Figure 1-3Front view of the Macintosh Quadra 605 computerFloppy disk driveFigure 1-4Back view of the Macintosh Quadra 605 computerOn/off switchPower connectorVideo portPrinter portModem port4Ethernet port (optional)SCSI portSound input jackADB portSound output jackAppearance
C H A P T E R1IntroductionExternal Video Monitors1The Macintosh LC 475 and Macintosh Quadra 605 computers require an external videomonitor. These computers can work with several sizes of video monitors.Table 1-2 shows the maximum pixel depths available for different monitor screen sizesand amounts of VRAM. The maximum pixel depth available depends on the size of themonitor’s screen and on the amount of VRAM installed. For information about VRAMexpansion, see “Video RAM” on page 13.For more information about the video monitors, see “Video Timing Parameters” onpage 28.Table 1-2Maximum pixel depths for the two VRAM sizesMonitor typeMonitorscreen sizein pixelsMaximum pixeldepth with512 KB VRAMMaximum pixeldepth with1 MB VRAM12-inch color512 384161612-inch monochrome640 4808814-inch color640 48081615-inch portrait640 8704816-inch color832 62481619-inch color1024 7684821-inch monochrome1152 8704821-inch color1152 87048NTSC or VGA640 480816NoteBy using the Monitors control panel computer, the user can select a16-color, 560-by-384-pixel display mode when the Apple IIe Card for theMacintosh LC is installed in the expansion slot. External Video Monitors5
C H A P T E R1IntroductionVideo Connector1The monitor connects to the computer’s DB-15 external video connector; Table 1-3 showsthe pin assignments.Table 1-3PinPin assignments on the external video connectorSignal nameDescription1RED.GNDRed video ground2RED.VIDRed video signal3/CSYNCComposite synchronization signal4SENSE0Monitor sense signal 05GRN.VIDGreen video signal6GRN.GNDGreen video ground7SENSE1Monitor sense signal 18n.c.Not connected9BLU.VIDBlue video signal10SENSE2Monitor sense signal 211GNDCSYNC and VSYNC ground12/VSYNCVertical synchronization signal13BLU.GNDBlue video ground14HSYNC.GNDHSYNC ground15/HSYNCHorizontal synchronization signalShellSGNDShield groundNoteThe video connector on the Macintosh LC 475 and MacintoshQuadra 605 computers is the same as the one on the Macintosh LC III.6External Video Monitors
C H A P T E R1IntroductionMonitor Sense Codes1To identify the type of monitor connected, the computers use the Apple monitor sensecodes and the extended sense codes. Table 1-4 shows the sense codes for each of themonitors that the Macintosh LC 475 and Macintosh Quadra 605 computers support. Referto the Macintosh Technical Note M.HW.SenseLines for a description of the sense codesystem.Table 1-4Monitor sense codesStandardsense codeExtended sense codeMonitor type(SENSE2–0)(1,2)(0,2)(0,1)12-inch RGB010———14-inch RGB110———15-inch Portrait001———VGA11111101016-inch RGB11110110119-inch RGB11101011121-inch RGB000———No monitor111111111RAM Expansion1The Macintosh LC 475 and Macintosh Quadra 605 computers come with 4 MB of RAMand 512 KB of VRAM installed. The user can expand the RAM up to a maximum of36 MB and the VRAM to 1 MB.RAM Configurations1Figure 1-5 shows the RAM configurations for different amounts of RAM. For moreinformation, see the section “RAM Addresses” on page 26.RAM Expansion7
C H A P T E R1IntroductionFigure 1-54 MBRAM configurations5 MB6 MB8 MB12 MB20 MB36 MBRAM SIMMs1The Macintosh LC 475 and Macintosh Quadra 605 computers have one RAM expansionsocket for a 72-pin RAM SIMM. The access time of the RAM devices must be 80 nsor less.A SIMM can be either single sided or double sided. Single-sided SIMMs using 1 Mbit,4 Mbit, or 16 Mbit devices provide RAM expansion of 1 MB, 4 MB, or 16 MB, respectively.Double-sided SIMMs using the same devices provide 2 MB, 8 MB, or 32 MB.RAM SIMM Signal AssignmentsTable 1-5 gives the signal assignments for the pins of the RAM SIMM.IMPORTANTRAM SIMMs used in Macintosh computers must meet the timingand electrical standards of those machines. SIMMs designed for othercomputers may not work. 8RAM Expansion1
C H A P T E R1IntroductionTable 1-5PinSignal assignments on the RAM SIMM socketSignal nameDescription1GNDGround2DQ0Data input/output bus, bit 03DQ16Data input/output bus, bit 164DQ1Data input/output bus, bit 15DQ17Data input/output bus, bit 176DQ2Data input/output bus, bit 27DQ18Data input/output bus, bit 188DQ3Data input/output bus, bit 39DQ19Data input/output bus, bit 1910 5V 5 volts11n.c.Not connected12A0Address bus, bit 013A1Address bus, bit 114A2Address bus, bit 215A3Address bus, bit 316A4Address bus, bit 417A5Address bus, bit 518A6Address bus, bit 619A10Address bus, bit 1020DQ4Data input/output bus, bit 421DQ20Data input/output bus, bit 2022DQ5Data input/output bus, bit 523DQ21Data input/output bus, bit 2124DQ6Data input/output bus, bit 625DQ22Data input/output bus, bit 2226DQ7Data input/output bus, bit 7continuedRAM Expansion9
C H A P T E R1IntroductionTable 1-5Signal assignments on the RAM SIMM socket (continued)PinSignal nameDescription27DQ23Data input/output bus, bit 2328A7Address bus, bit 729A11Address bus, bit 1130 5V 5 volts31A8Address bus, bit 832A9Address bus, bit 933/RAS3Row Address Strobe 334/RAS2Row Address Strobe ved39GNDGround40/CAS0Column Address Strobe 041/CAS2Column Address Strobe 242/CAS3Column Address Strobe 343/CAS1Column Address Strobe 144/RAS0Row Address Strobe 045/RAS1Row Address Strobe 146n.c.Not connected47/WWrite enable48n.c.Not connected49DQ8Data input/output bus, bit 850DQ24Data input/output bus, bit 2451DQ9Data input/output bus, bit 952DQ25Data input/output bus, bit 2553DQ10Data input/output bus, bit 10continued10RAM Expansion
C H A P T E R1IntroductionTable 1-5Signal assignments on the RAM SIMM socket (continued)PinSignal nameDescription54DQ26Data input/output bus, bit 2655DQ11Data input/output bus, bit 1156DQ27Data input/output bus, bit 2757DQ12Data input/output bus, bit 1258DQ28Data input/output bus, bit 2859 5V 5 volts60DQ29Data input/output bus, bit 2961DQ13Data input/output bus, bit 1362DQ30Data input/output bus, bit 3063DQ14Data input/output bus, bit 1464DQ31Data input/output bus, bit 3165DQ15Data input/output bus, bit 1566n.c.Not —Reserved71n.c.Not connected72GNDGroundRAM SIMM Mechanical Specifications1The RAM SIMMs for the Macintosh LC 475 and Macintosh Quadra 605 computers aremechanically the same as the 72-pin RAM SIMMs used in the Macintosh LC III andMacintosh Centris 610 computers. The mechanical design of the RAM SIMMs is based onthe industry standard design defined in the JEDEC Standard Number 21-C. Figure 1-6shows the mechanical specifications. Pin contacts must be tin, not gold or copper, and thecircuit board must dedicate one layer to power and one to ground.RAM Expansion11
C H A P T E R1IntroductionFigure 1-6RAM expansion SIMM-BR 1.57 0.1[.062 .004]32.0 [1.26]MAX10.16 0.20[.400 .008]6.35 0.20[.250 .008]3.38[.133]-A-(6.35)[.250]12.03 0.20[.080 .008]101.19 0.20[3.98 .008]SEE DETAIL A35 X 1.27 [.050] 44.45 0.20[1.75 .008]6.35 0.05[.250 .002]107.95 0.20[4.25 .008]0.10 [.004] M A BR 1.57 0.12[.062 .005]35 X 1.27 [.050] 44.45 0.20[1.75 .008]2X Ø3.18 0.1[.125 .004]2.03[.080]MIN0.25[.010]MAX0.90 0.17- 0.08.035 .003- .0032.54 [.100]MIN1.27 0.10[.050 .004]DETAIL AROTATED 90 CCW12RAM Expansion1.27 0.10- 0.08.050 .004- .0039.4 [.37]MAXDevice on thisside optional.
C H A P T E R1IntroductionVideo RAM1The video RAM works the same way on both computers. Each computer has two socketsfor 68-pin VRAM SIMMs. The pair of SIMMs can contain a total of either 512 KB or 1 MBof VRAM. All the VRAM in each computer is in the SIMMs; the computers have noVRAM soldered to the logic board. The VRAM SIMMs are the same type as those used inthe Macintosh LC and Centris models.IMPORTANTBoth VRAM SIMM sockets must be occupied and both SIMMs must bethe same size, either 256 KB or 512 KB each. NoteThe system will not recognize more than 1 MB of VRAM. NoteWhen the Apple IIe Card for Macintosh LC is installed in the expansionslot, the computer provides a 560-by-384-pixel, 16-color display forrunning Apple IIe software. The user selects that display mode from theMonitors control panel. For more information, see “Video TimingParameters” on page 28. Serial I/O Ports1The Macintosh LC 475 and Macintosh Quadra 605 computers have two serial ports, onefor a printer and one for a modem. The printer port uses the standard 8-pin mini-DINsocket. The modem port uses a 9-pin mini-DIN socket. Both sockets accept 8-pin plugs,but only the modem port accepts a 9-pin plug. Figure 1-7 shows the mechanical arrangement of the pins on the serial port sockets; Table 1-6 shows the signal assignments.Figure 1-78Serial port sockets756421PrinterSerial I/O Ports8357694213Modem13
C H A P T E R1IntroductionTable 1-6Serial port signalsPinnumberSignal description1Handshake output2Handshake input3Transmit data –4Ground5Receive data –6Transmit data 7General-purpose input8Receive data 9 5 volts (modem port only)Pin 9 on the modem connector provides 5V power from the ADB power supply. Amodem should draw no more than 100 mA from that pin. The total current available forall devices connected to the 5V supply for the ADB and the modem port is 500 mA.Both serial ports include the GPi (general-purpose input) signal on pin 7. The GPi signalfor each port connects to the corresponding data carrier detect input on the SCC (SerialCommunications Controller). On serial port A (the modem port), the GPi line can beconnected to the receive/transmit clock (RTxCA) signal on the SCC. That connectionsupports devices that provide separate transmit and receive data clocks, such assynchronous modems. For more information about the serial ports, see Guide to theMacintosh Family Hardware, second edition.Floppy Disk DriveThe Macintosh LC 475 and Macintosh Quadra 605 computers have one internalhigh-density floppy disk drive (Apple SuperDrive). The drive is connected to the logicboard by a 20-pin connector. Table 1-7 shows the pin assignments for the floppydisk connector.14Floppy Disk Drive1
C H A P T E R1IntroductionTable 1-7PinnumberPin assignments for the internal floppy disk connectorSignal nameSignal description1GNDGround2PH0Phase 0: state control line3GNDGround4PH1Phase 1: state control line5GNDGround6PH2Phase 2: state control line7GNDGround8PH3Phase 3: register write strobe9n.c.Not connected10/WRREQWrite data request11 5V 5 volts12SELHead select13 12V 12 volts14/ENBLDrive enable15 12V 12 volts16RDRead data17 12V 12 volts18WRWrite data19 12V 12 volts20n.c.Not connectedSCSI Bus1The Macintosh LC 475 and Macintosh Quadra 605 computers have a SCSI bus for theinternal hard drive and one or more external SCSI devices.The internal SCSI connector is a 50-pin connector with the standard SCSI pin assignments. The external SCSI connector is a 25-pin D-type connector with the same pinassignments as other Apple SCSI devices. Table 1-8 shows the pin assignments onthe internal and external SCSI connectors.SCSI Bus15
C H A P T E R1IntroductionTable 1-8Pin assignments for the internal and external SCSI connectorsInternal (50-pin)External (25-pin)Signal 2/DB61613/DB71820/DBP25–n. /SEL4615/C/D481/REQ503/I/O20, 22, 24, 28,30, 34, andall odd pinsexcept pin 25ADB Ports7, 9, 14, 16, 18,and 24GND1The Apple Desktop Bus (ADB) port on the Macintosh LC 475 and Macintosh Quadra 605is functionally the same as on other Macintosh computers.The ADB is a single-master, multiple-slave serial communications bus that uses anasynchronous protocol and connects keyboards, graphics tablets, mouse devices, andother devices to the computer. The custom ADB microcontroller drives the bus and readsstatus from the selected external device. A 4-pin mini-DIN connector connects the16ADB Ports
C H A P T E R1IntroductionADB controller to the outside world. Table 1-9 lists the ADB connector pin assignments.For more information about the ADB, see Guide to the Macintosh Family Hardware,second edition.Table 1-9ADB connector pin al data bus used for input and output. It isan open-collector signal pulled up to 5 volts through a470-ohm resistor on the main logic board.2PSWPower-on signal that generates reset and interrupt keycombinations.3 5V 5 volts from the computer.4GNDGround from the computer.NoteThe total current available for all devices connected to the 5V pins onthe ADB and the modem port is 500 mA. Each device should use nomore than 100 mA. Sound1Like other Macintosh computers, the Macintosh LC 475 and Macintosh Quadra 605computers can create sounds digitally and play the sounds through their internalspeakers or send the sound signals out through the sound out connector.Sound Input Jack1The Macintosh LC 475 and Macintosh Quadra 605 computers have a sound input jack onthe back for connecting an external microphone or other sound source. The sound inputjack accepts a standard 1/8-inch phone plug, either monophonic or stereophonic (twosignals plus ground).The sound input jack accepts either the Apple PlainTalk line-level microphone or a pair ofline-level signals by way of a separate adapter. The internal circuitry mixes thestereophonic signals into a monophonic signal.NoteThe Apple PlainTalk microphone requires power from the maincomputer, which it obtains by way of an extra-long, 4-conductor plugthat makes contact with a 5-volt pin inside the sound input jack. Sound17
C H A P T E R1IntroductionIMPORTANTThe microphone for the Macintosh LC and LC II does not work with theMacintosh LC 475 and Macintosh Quadra 605 computers; they requirethe line-level signal provided by the Apple PlainTalk microphone. Sound Modes1The sound mode is selected by means of a call to the Sound Manager. The sound circuitrynormally operates in one of four modes: Sound playback: computer-generated sound is sent to the speaker and the soundoutput jack. Sound playback with playthrough: computer sound and sound input are mixed andsent to the output. Sound record: sound input is recorded; this is the preferred method for recording,especially when using the built-in microphone. Sound record with playthrough: input sound is recorded and also fed through tothe output.Sample Rates1The Macintosh LC 475 and Macintosh Quadra 605 computers can record and play backsound at either of two sample rates: 11k samples
Macintosh Developer Note Number 3 covers the Macintosh Color Classic , the Macintosh LC III, the Macintosh PowerBook 165c, the Macintosh Centris 610 and 650, and the Macintosh Quadra 800. APDA is Apple’s worldwide source for over three hundred development tools, technical resources, training products, and information for anyone
Examination Part 1, BUS 475 Capstone Final Examination Part 1 Test Paper, UOP Business 475 Final Exam Solution, BUS 475 Capstone Final Examination Part 1 Questions and Answers, BUS 475 Complete Course, BUS 475 Complete Assignment for University Of Phoenix. 1. Article 6 of the Treaty on European Union, called the Maastricht Treaty,
475.05.02 Vacuum System 475.05.02 Vacuum System Management 239 239 33 33% 272 475.05.02.01 Production Solenoid Enclosure 211 178 389 176 45% 565 475.05.02.02 Detector Solenoid Enclosure 38% 829 252 1,081 406 1,486 475.05.02.03 Solenoid Cryostat Interconnect Components 115 260 375 122 32% 497 475.05.02.04 External Vacuum System Components 829 .
1Z0-475 Sample Questions and Exam Summary _ _ 1Z0-475 - Oracle IT Architecture SOA 2013 Essentials pg. 2 Introduction to 1Z0-475 Exam on Oracle IT Architecture SOA 2013 Essentials You can use this exam guide to collect all the information about Oracle IT Architecture SOA 2013 Essentials (1Z0-475) certification.
Berkeley Madonna is available for both Macintosh and Windows platforms. While these versions are mostly identical, there are some differences which are noted throughout this guide with the notation [Macintosh] or [Windows]. System Requirements Macintosh: Power Macintosh or compatible computer1 with a PowerPC processor and least
Zone 2, for Group IIC; Zone 20, Zone 21, Zone 22, and Class I, Division 1 and Division 2, Groups A, B, C, and D locations. IS-approved 475 Field Communicators are ordered with the KL option and have an additional label on the back of the 475 that lists the approvals.
HART and Fieldbus drivers. With the 475 Field Communicator, you are guaranteed universal HART and Foundation Fieldbus support in a single, intrinsically safe handheld communicator. Intrinsically Safe The 475 Field Communicator meets the Intrinsic Safety requirements of the listed regulatory agencies and standards.
Rochester, NY 14623-5603 Voice: 585-475-ALUM, Toll Free: 866-RIT-ALUM TTY: 585-475-2764, Fax: 585-475-5308 Email: ritalum@rit.edu Rochester Institute of Technology, Rochester, New York, publishes RIT University Magazine. RIT does not discriminate. RIT promotes and values diversity within its workforce and provides
10. Rumki Basu (2008) Public Administration in the age of Globalization: An alternative paradigm in Rumki Basu (ed) Globalization and the changing role of the state, New Delhi, New Dawn, pp275-283. 11. Rumki Basu (2002) The impact of economic reforms on social sector expenditure in four
