Kempston Joystick
This interface is the most popular and the best way to
connect joystick to ZX Spectrum. The port used is 31 (#1F) and
usually only A5=0 decoding is done. The idle is 0 (#00) value in
the port.
The interace contains inverted 3-state buffer, as input pins are
shorted to GND by the joystick, while this sets bits in port.
There are many constructions, you can see some below.
Pliki do pobrania
- kjschem.gif 11.7kB (2002-10-12 20:18)
- Schemat. Jak zbudować Kempston Joystick z układów 74LS240 oraz 74LS32.
Zobacz również
- YAMOD.KJOY
- Kempston Joystick for YABUS.
- Z80JOY
- Wewnętrzny interfejs Kempston Joystick, montowany pod Z80 CPU (albo ponad).
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