Changes

8255

33 bytes added, 18 November

/* The 8255 in the CPC */

{| class="wikitable"

!I/O address

!/CS (A11)!A1 (A9)!A0 (A8)

!Description

!Read/Write status

!Used for

|-

|&F4xx||0||0||0||Port A Data||Read/Write||In/Out||[[PSG]] (Sound/Keyboard/Joystick)

|-

|&F5xx||0||0||1||Port B Data||Read/Write||In||Vsync/Jumpers/PrinterBusy/CasIn/Exp

|-

|&F6xx||0||1||0||Port C Data||Read/Write||Out||KeybRow/CasOut/PSG

|-

|&F7xx||0||1||1||Control||Write Only||Out||Control

|-

|}

8,326

edits