NEO-F0: Difference between revisions

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[[File:mvs_f0.jpg|right|thumb|NEO-F0 chip found on a MV1S MVS board.]]
{{ChipInfo
|picture=mvs_f0.jpg
|pkg=QFP64R
|manu=fujitsu
|date=1991 ?
|gates=
|used_on={{PCB|MV1FZS}} ...
}}


MVS specific chip.
MVS specific chip.


Handles the [[RTC]] access, [[hardware DIPs]] reading, cab switches (test, service...), [[coin counter]]s, LED and [[marquee]] outputs, and slot selection signals for multi-slot boards.
* [[RTC]] interface
* [[Hardware DIPs]] and cab switches reading
* [[Coin counter]]s interface
* LEDs and [[marquee]] outputs
* Slot selection for multi-slot boards


{{Sig|SYSTEMB|SYSTEMB}} is used to gate the SLOT* outputs.
Note: {{Sig|SYSTEMB|SYSTEMB}} is used to gate the SLOT* outputs.


=Pinout=
=Pinout=

Revision as of 01:22, 12 October 2016

Package QFP64R
Manufacturer
First use 1991 ?
Used on MV1FZS ...

MVS specific chip.

Note: SYSTEMB is used to gate the SLOT* outputs.

Pinout

File:Neo-f0 pinout.png

OpenOffice Draw file: File:Neo-f0.odg

Signals

CPU

  • A4~A7: 68k address bus
  • D0~D7: 68k data bus

RTC

4990*: uPD4990 RTC interface

IN3 DIPRD1: Output IN300~IN304 to D0~D4 and CALTP/CALDOUT to D6/D7 (read $320001). D5 is IN00 ?

I/O

DIPRD0: Output to D0~D7 depending on state of A7:

  • A7 low: output dipswitch states DIP00~DIP07 (read $300001)
  • A7 high: output IN01 to D7 (test switch) and TYPE to D6 (read $300081)

Slot select

  • SLOTA~SLOTC: binary slot selection
  • SLOT0~SLOT5: decoded slot selection (active low)

Connections

MV1F:

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

MV2B:

  • IN303: NEO-E0 H6 50 (BNK0)
  • IN304: 3 of PRO-C0, NEO-E0 H6 48