Changes
/* PPI Port B */
{|{{Prettytable|width: 700px; font-size: 2em;}}
|''Bit''||''Description''||''Usage in CPC''||''Usage in KC CompactAleste''
|-
|7||CAS.IN||Cassette data input||Same as on CPC
|6||PRN.BUSY||Parallel/Printer port ready signal, "1" = not ready, "0" = Ready||Same as on CPC
|-
|5||/EXP||Expansion Port /EXP pin||Same as on CPCWired to GND (uh, BUT, Aleste Expansion Port DOES have an /EXP pin?)
|-
|4||LK4||Screen Refresh Rate ("1"=50Hz, "0"=60Hz)||Purpose unknown (not same Same as on in CPC?) (set to "1")
|-
|3||LK3||Manufacturer ID bit3||Purpose unknown (set rowspan=2|LK3 is shortcut to "1")LK2, and wired to a pull-up resistor
|-
|2||LK2||Manufacturer ID bit2||Purpose unknown (set to "0")
|-
|1||LK1||Manufacturer ID bit1||Expansion Port /TEST DISCINT (the /INT pinfrom FDC 765)
|-
|0||[[CRTC]] VSYNC||Vertical Sync ("1"=VSYNC active, "0"=VSYNC inactive)||Same as on CPC(though using emulated timings from VDKEY eprom)
|-
|}
