Changes
To avoid conflict with other peripherals the Z8536 should be access using:
{|{{Prettytable|width: 700px; font-size: 2em;}}|''Port address ''||''Register''|-|&ECxx ||Port B data register|-|&EDxx ||Port C data register|-|&EExx ||control registers|-|&EFxx ||Port A data register|-|}
In the KC Compact: