Changes
8255
,* Output
==== NOTE:====
* For writing data to PSG all bits must be set to output,
* Input
==== Note: ====
1. On CPC464,CPC664,CPC6128 and GX4000 this is LK3 on the PCB. On the CPC464+ and CPC6128+ this is LK103 on the PCB. On the KC compact this is "1".
Table showing manufacturer name on power-up (CPC and CPC+ only):
{|{{Prettytable|width: 700px; font-size: 2em;}}
|''Bit 3''||''Bit 2''||''Bit 1''||''Manufacturer Name''
|-
|0||0||0||Isp
|-
|0||0||1||Triumph
|-
|0||1||0||Saisho
|-
|0||1||1||Solavox
|-
|1||0||0||Awa
|-
|1||0||1||Schneider
|-
|1||1||0||Orion
|-
|1||1||1||Amstrad
|-
|}
=== PPI Port C ===
Operating system settings:
* upper: I/O Mode 0, lower: I/O mode 0,
* upper: output, lower: output
== Programming Examples ==
