Rotating logo PIN-OUTS (and more) Same rotating logo
Cartridge Cartridge Port
ECI Enhanced Cartridge Interface XE
Joystick Joystick Controllers
Monitor (pal/ntsc) Monitor (pal/ntsc)
Monitor (secam) Monitor (secam)
Power Power XL/XE
SIO Serial I/O
Parallel Parallel Bus XL
Keyboard-XL Keyboard Matrix XL
Parity SCSI-Parity on BlackBox
Pokey POKEY-Chip
msc-IDE interface msc-IDE interface

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Cart Cartridge Expansion Bus as used on all XL and XE computers, and 400/800 'left' Cartridge slot.

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Enhanced Cartridge Interface. Is only available on 130XE, and non-American 65XE and 800XE models. ECI

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Joystick   Joystick Ports, available on all models. 

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Monitor Connection as on NTSC & PAL XL/XE models. Not fully functional on 600XL models. Monitor pal/ntsc

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Monitor secam Monitor Connection from the SECAM XL/XE models, mainly used in France.

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Power Input from all XL and XE models except 1200XL. Power

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SIO Serial I/O Connector. Available on all models. +12V only present on Atari 400, 800, and 1200XL computers.

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Parallel Bus as used on the 600XL and 800XL computers. Parallel

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Keyboard XL Circled numbers are the pins of the keyboard-connector, with the uppermost pin as [1]. The special 'Fn' keys from the 1200XL can be added to any XL model, but may not work when using a replacement o.s.

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Mount the 74ls280 on top of the 74hct640 (the SCSI linedriver from the BlackBox) as in the drawing, and you're able to run those popular SCSI harddisks which needs the parity-bit. Do NOT try to do a lo-level format on those harddisks (HDFMT.COM), as this will destroy important information on the boot-sectors of the HD. Just start creating partitions and you're done. Parity

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Pokey-Chip This chip is responsible for the sound and serial I/O, and is available in all models. It also controls the paddles and takes care of the keyboard.

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Pokey-Chip These are the components as found on the German IDE controller, created by msc in 1996. It's able to drive two IDE devices, like two harddisks, or a harddisk and a CD-Rom drive.

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Sources: "130XE users manual" (© Atari Benelux), "Mapping the Atari, Revised Edition" (© Ian Chadwick), Chuck Steinman, "SAG ATARI Magazine" (G.Assman/E.Maas), "msc-IDE-Controller manual" (© Stefan Birmanns and Matthias Belitz), and a small doc about SCSI and parity (© M.Graiter).


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