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6504 Microprocessor (basis of the Floppy Disk Controller)

Started by sigma7, September 26, 2023, 04:57:01 PM

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sigma7

September 26, 2023, 04:57:01 PM
The Floppy Disk Controller on the Lisa I/O Board is based on the 6504A microprocessor.

The 6504 is a variant of the very common 6502 microprocessor used in the Apple ][ series.

The 6504 is clocked at 2 MHz, so the 6504A speed grade is appropriate.
Warning: Memory errors found. ECC non-functional. Verify comments if accuracy is important to you.
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