IPI-U05 (edited).EQN.txt

Application connector address decoder

plain - 2.33 kB - 02/12/2023 at 01:52

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IPI-U03 (edited).EQN.txt

plain - 766.00 bytes - 02/12/2023 at 01:52

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IPI-U01 (edited).EQN.txt

Z180 glue logic

plain - 2.53 kB - 02/12/2023 at 01:52

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IPI-U04 (edited).EQN.txt

Seems to be the STEbus address decoder

plain - 3.06 kB - 02/12/2023 at 01:52

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IPIMON-v1-6_4732-00-asm2 (8).txt

IPI Monitor ROM source code partly reverse engineered.

plain - 84.22 kB - 02/05/2023 at 14:32

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IPIMON-v1-6_4732-00.bin

IPI Monitor ROM as binary file.

octet-stream - 5.00 kB - 02/01/2023 at 12:00

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IPIMON-v1-6_4732-00.hex

IPI Monitor ROM as Intel hex file.

hex - 13.76 kB - 02/01/2023 at 12:00

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IPIMON-v1-6_4732-00.h

IPI Monitor ROM as C header file.

x-chdr - 197.43 kB - 02/01/2023 at 11:57

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IPI_PAL_files.zip

IPI PAL files, JEDEC and disassembled equations.
Informative pin names partially established.

application/zip - 8.13 kB - 01/04/2022 at 16:31

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BT IPI in BT Engineering magazine.zip

British Telecom Engineering magazine mentions their various STEbus boards.

Zip Archive - 79.34 kB - 01/04/2022 at 16:42

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sn74als1035.pdf

The only unusual component, it is a non-inverting open-collector buffer.

Adobe Portable Document Format - 1.06 MB - 01/04/2022 at 18:30

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