NEO-F0

From NeoGeo Development Wiki
Revision as of 00:44, 3 December 2011 by Furrtek (talk | contribs)
Jump to navigation Jump to search
NEO-F0 chip found on a MV1S MVS board.

MVS specific chip.

Handles the UPD4990 calendar access, dipswitches, cab switches (test, service...), coin counters, LED marquee outputs and slot selection signals for multi-slot boards.

Pinout

File:Neo-f0 pinout.png

OpenOffice Draw file: File:Neo-f0.odg

  • A4~A7: 68k address bus
  • D0~D7: 68k data bus
  • 4990: uPD4990 RTC interface
  • DATA0~DATA7: LED marquee latch data
  • SLOT*: /CS for multislot boards ?
  • DIP00~DIP07: Dipswitch inputs

MV1F:

  • IN00: Ground
  • IN01: Test switch
  • IN300: P1 Coin switch
  • IN301: P2 Coin switch
  • IN302: Service switch
  • IN303/IN304: VCC