Add useful datasheets and info when working with BBU.
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Andrew Makousky
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*.pdf
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# Associated Documentation
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These are references to useful reference documentation when working
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with the BBU design, mostly datasheets. See `index.md` for links
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with descriptions and `getsheets.sh` for a script to download them all
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locally.
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Also, it's helpful to consult the software pin assignments on the VIA
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when working with the BBU, I've created `VIA.txt` as a quick reference
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for this, so you don't have to read through several pages of _Guide to
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the Macintosh family hardware_.
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----------
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Wondering what the cryptic D-P SAMI option in the Macintosh SE
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schematics is? This has to do with the fact that row 1 and row 2 in
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resistored versus jumpered Macintoshes behave differently. row 2
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(SIMM 3 and 4) contains the larger RAM SIMMs in jumpered versions, row
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1 (SIMM 1 and 2) contains the larger RAM SIMMs in resistored versions.
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Macintosh SE VIA pin assignments.
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VIA Data register A:
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7 Input vSCCWrReq 0 = SCC Wait/Request, channel A or B
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6 Output vPage2 0 = alternate screen buffer, 1 = main screen buffer
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5 Output vHeadSel Floppy disk state-control line SEL
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4 Output vDriveSel 0 = upper internal floppy disk drive, 1 = lower
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3 Output vSync 1 = synchronous model support, channel A
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2 Output vSound(2) Sound volume
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1 Output vSound(1) { (111 = maximum, 000 = minimum;
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0 Output vSound(0) bit 2 = most significant bit )
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VIA Data register B:
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7 Output vSndEnb 0 = sound enabled
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6 Output vH4 0 = SCSI IRQ enabled
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5 Output vFDesk2 ADB state input 1 (ST1)
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4 Output vFDesk1 ADB state input 0 (ST0)
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3 Input vFDBInt 0 = ADB interrupt
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2 Output rTCEnb 0 = real-time clock enabled
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1 Output rtcCLK Real-time clock's serial data-clock line
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0 In or Out rtcData Real-time clock's serial data line
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VIA Peripheral Control register:
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CB2 7-5 Apple Desktop Bus data
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CB1 4 Apple Desktop Bus clock
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CA2 3-1 One-second interrupt
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CA1 0 Vertical blanking interrupt
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#! /bin/sh
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curl -L -O 'https://www.nxp.com/docs/en/reference-manual/M68000PRM.pdf'
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curl -L -O 'https://www.nxp.com/docs/en/reference-manual/MC68000UM.pdf'
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curl -L -O 'http://www.weihenstephan.org/~michaste/pagetable/mac/Inside_Macintosh.pdf'
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curl -L -O 'http://koyado.com/Heathkit/Z67-IDE-plus_files/NCR_5380_SCSI_Interface_Chip_Design_Manual_May85.pdf'
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curl -L -o 'http://www.applelogic.org/files/Z8530UM.pdf'
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curl -L -O 'http://archive.6502.org/datasheets/rockwell_r6522_via.pdf'
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curl -L -O 'http://www.assmann-wsw.com/fileadmin/datasheets/ASS_0981_CO.pdf'
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curl -L -O 'https://media.digikey.com/pdf/Data%20Sheets/Rohm%20PDFs/MSM51V17405F.pdf'
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MC68000 CPU datasheets:
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20100924/http://www.freescale.com/files/archives/doc/ref_manual/M68000PRM.pdf
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20100925/http://www.freescale.com/files/32bit/doc/ref_manual/MC68000UM.pdf
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MC68000 CPU datasheets UPDATED URLS:
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20201230/https://www.nxp.com/docs/en/reference-manual/M68000PRM.pdf
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20201230/https://www.nxp.com/docs/en/reference-manual/MC68000UM.pdf
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Inside Macintosh, the old printed volumes mainly pertaining to the
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Macintosh 512k but still a very useful reference:
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20110506/http://www.pagetable.com/?p=50
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20110506/http://www.weihenstephan.org/~michaste/pagetable/mac/Inside_Macintosh.pdf
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For newer info, see the online website format in the Internet Archive
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Wayback Machine.
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20190525/https://web.archive.org/web/20000306231850/http://developer.apple.com/techpubs/mac/Devices/Devices-122.html
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Next, the datasheets for all the other chips on the Macintosh SE Main
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Logic Board: 6522 VIA, Zilog 8530 SCC, NCR 5380 SCSI, 84-PLCC socket
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pinout for mapping the BBU pinout. And, for the sake of understanding
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how to program asynchronous DRAM timings, a random asynchronous DRAM
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chip's datasheet.
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20201018/http://koyado.com/Heathkit/Z67-IDE-plus_files/NCR_5380_SCSI_Interface_Chip_Design_Manual_May85.pdf
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20201116/http://www.applelogic.org/files/Z8530UM.pdf
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20201117/http://archive.6502.org/datasheets/rockwell_r6522_via.pdf
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20201018/http://www.assmann-wsw.com/fileadmin/datasheets/ASS_0981_CO.pdf
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20201018/https://media.digikey.com/pdf/Data%20Sheets/Rohm%20PDFs/MSM51V17405F.pdf
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*.pdf
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#! /bin/sh
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curl -L -o NATLS12110-1.pdf 'https://4donline.ihs.com/images/VipMasterIC/IC/NATL/NATLS12110/NATLS12110-1.pdf?hkey=EC6BD57738AE6E33B588C5F9AD3CEFA7'
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curl -L -o sn74f253.pdf 'https://www.ti.com/lit/ds/symlink/sn74f253.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1606010224568'
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curl -L -o sn74ls393.pdf 'https://www.ti.com/lit/ds/symlink/sn74ls393.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1606017658244'
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curl -L -o sn74ls163a.pdf 'https://www.ti.com/lit/ds/symlink/sn74ls163a.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1606016019934'
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curl -L -o sn74ls166a.pdf 'https://www.ti.com/lit/ds/symlink/sn74ls166a.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1606017431128'
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curl -L -o sn74ls245.pdf 'https://www.ti.com/lit/ds/symlink/sn74ls245.pdf?ts=1605988214907&ref_url=https%253A%252F%252Fen.wikipedia.org%252F'
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curl -L -o sn74ls258b.pdf 'https://www.ti.com/lit/ds/symlink/sn74ls258b.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1606017265143'
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curl -L -o sn74f257.pdf 'https://www.ti.com/lit/ds/symlink/sn74f257.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1606022173419'
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Macintosh Plus standard logic chips, account for their datasheets and
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wiring.
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* F04 -- hex inverter
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* F253 -- 1-of-4 address muxes
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* LS161 -- 4-bit binary counter
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* LS166 -- PISO shift register
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* LS245 -- octal bus transceivers
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* LS257 -- quadruple 2-to-1 line RAS/CAS multiplexer
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* LS393 -- 4-bit dual binary counter
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Additional chip datasheets for the Macintosh SE:
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* F257 -- quadruple 2-to-1 RAS/CAS multiplexer
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20201121/https://4donline.ihs.com/images/VipMasterIC/IC/NATL/NATLS12110/NATLS12110-1.pdf?hkey=EC6BD57738AE6E33B588C5F9AD3CEFA7
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20201121/https://www.ti.com/lit/ds/symlink/sn74f253.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1606010224568
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20201121/https://www.ti.com/lit/ds/symlink/sn74ls393.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1606017658244
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20201121/https://www.ti.com/lit/ds/symlink/sn74ls163a.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1606016019934
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20201121/https://www.ti.com/lit/ds/symlink/sn74ls166a.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1606017431128
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20201121/https://www.ti.com/lit/ds/symlink/sn74ls245.pdf?ts=1605988214907&ref_url=https%253A%252F%252Fen.wikipedia.org%252F
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20201121/https://www.ti.com/lit/ds/symlink/sn74ls258b.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1606017265143
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20201121/https://www.ti.com/lit/ds/symlink/sn74f257.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1606022173419
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