Coin counter: Difference between revisions

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The coin counter is an internal electromechanical device used to count inserted coins in MVS cabs. It could be a law-imposed device.
[[File:Coincounter.jpg|thumb|200px]]


The counter has typically one pin hardwired to +12V, and the other one connected to the MVS board. It is operated by the MVS board, not directly by the coin chutes.
A coin counter is an internal electromechanical device used to count inserted coins in MVS cabs. It could be a law-imposed device.


When writing to {{Reg|REG_SETCC1}} or {{Reg|REG_SETCC2}}, current flows through the counter, it's incremented. When {{Reg|REG_RESETCC1}} or  {{Reg|REG_RESETCC2}} are written to, current flow is stopped.
The counter has typically one pin hardwired to +12V, and the other one connected to the MVS board. It is operated by software (?), not directly by the coin chutes.
 
=Control=
 
Only the [[system ROM]] should be doing this.
 
When writing to {{Reg|REG_SETCC1}} or {{Reg|REG_SETCC2}}, current flows through the counters, they're incremented. When {{Reg|REG_RESETCC1}} or  {{Reg|REG_RESETCC2}} are written to, current flow is stopped.


[[Category:Cartridge systems]]
[[Category:Cartridge systems]]

Revision as of 01:37, 17 November 2016

A coin counter is an internal electromechanical device used to count inserted coins in MVS cabs. It could be a law-imposed device.

The counter has typically one pin hardwired to +12V, and the other one connected to the MVS board. It is operated by software (?), not directly by the coin chutes.

Control

Only the system ROM should be doing this.

When writing to REG_SETCC1 or REG_SETCC2, current flows through the counters, they're incremented. When REG_RESETCC1 or REG_RESETCC2 are written to, current flow is stopped.