MV-LED



Credits display board in original MVS systems. Uses two 7-segment displays to show the player's remaining credits.

Uses CRE401 RC arrays for inputs.

Connections:
 * VCC
 * VCC
 * Clk
 * Digit 1 ABCD
 * Digit 2 ABCD
 * GND
 * GND

Digits are BCD-coded and controled by registers REG_LEDLATCHES($380031) and REG_LEDDATA($380041). Clock on rising edge ?

See also MV-ELA for the marquee board details.



Connection to the MVS board visible in