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Posted on April 21, 2021September 14, 2025

6502: Power-on Reset

The WDC65C02 datasheet says that to initialize the microprocessor and start program execution the reset pin must be held low for at least two clock cycles after the power supply reaches operating voltage. In most cases if this is not done your 6502 based computer will not function properly. Ben Eater’s 6502 computer accomplishes this …

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