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I am aware that it's not always possible due to security fuse, but I would like to at least try to read the fusemap from a certain PAL16R6 chip. I would like to do it using MCU like Arduino, not a dedicated expensive programmer. Problem is, that I can't find any info regarding programming/verifying algorithm for PAL's.

The TI datasheet for PAL16R6 contains only this short information: "Complete programming specifications, algorithms, and the latest information on hardware, software, and firmware are available upon request", and that's all. So, is there any document/open source software/anything which I could examine to find some information regarding procedure of programming and reading back PAL fusemaps?

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    \$\begingroup\$ Have you tried asking TI for the specifications? \$\endgroup\$
    – Tom Carpenter
    Commented Jan 2 at 14:04
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    \$\begingroup\$ There is a thread on the official TI support forum with information about these PAL devices. Maybe it contains what you're looking for. \$\endgroup\$
    – nanash1
    Commented Jan 2 at 14:58
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    \$\begingroup\$ Maybe this link offers some useful information? \$\endgroup\$
    – StarCat
    Commented Jan 2 at 14:59
  • \$\begingroup\$ Thank you nanash1 , this is exactly what i needed. ZIP file attached to this discussion contains all informaton necessary to program and verify PAL IC. \$\endgroup\$
    – woytekm
    Commented Jan 2 at 18:01
  • \$\begingroup\$ Please post this as an answer starcat \$\endgroup\$
    – Voltage Spike ♦
    Commented Jan 2 at 19:06

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Link provided by nanash1 contains PAL programming documentation. Thank you!

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