Difference between revisions of "Port"

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The VES has four usable 8-bit data ports in the console, port 0 and 1 that are in the 3850 CPU and port 4 and 5 on one of the 3851 Program Storage Units.
 
The VES has four usable 8-bit data ports in the console, port 0 and 1 that are in the 3850 CPU and port 4 and 5 on one of the 3851 Program Storage Units.
 
<br>
 
<br>
Port 0 <br>
+
<br>
 +
Port 0<br>
 
Bit 0-3 hooked to buttons TIME, MODE, HOLD, START <br>
 
Bit 0-3 hooked to buttons TIME, MODE, HOLD, START <br>
 
Bit 4 N/C <br>
 
Bit 4 N/C <br>

Revision as of 13:08, 17 November 2012

The VES has four usable 8-bit data ports in the console, port 0 and 1 that are in the 3850 CPU and port 4 and 5 on one of the 3851 Program Storage Units.

Port 0
Bit 0-3 hooked to buttons TIME, MODE, HOLD, START
Bit 4 N/C
Bit 5
Bit 6 Enable signal to controllers
Bit 7 N/C

Port 1