The Dreamcast is a somewhat forgotten console today, but for a shining minute in the late 1990s, it was possible to believe Sega were still in the fight. Regardless, their hardware lives on, loving… ...

LS7191 debounced up and down push buttons, and SPI; LS7192 up clock and down clock from GPIO, and SPI; LS7193 debounced incremental encoder quadrature; LS7194 debounced up and down push buttons; ...