NEO-F0: Difference between revisions
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OpenOffice Draw file: [[File:neo-f0.odg]] | OpenOffice Draw file: [[File:neo-f0.odg]] | ||
=Signals= | |||
==CPU== | |||
*A4~A7: [[68k]] address bus | *A4~A7: [[68k]] address bus | ||
*D0~D7: 68k data bus | *D0~D7: 68k data bus | ||
==RTC== | |||
4990*: [[uPD4990]] RTC interface | |||
IN3 {{Sig|DIPRD1|DIPRD1}}: Output IN300~IN304 to D0~D4 and CALTP/CALDOUT to D6/D7 (read $320001) | |||
==I/O== | |||
{{Sig|DIPRD0|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 | *SLOTA~SLOTC: binary slot selection | ||
*SLOT0~SLOT5: decoded slot selection (active low) | *SLOT0~SLOT5: decoded slot selection (active low) | ||
=Connections= | |||
MV1F: | MV1F: | ||
*IN00: Ground | *IN00: Ground | ||
Revision as of 18:10, 28 August 2016
MVS specific chip.
Handles the RTC access, hardware DIPs reading, cab switches (test, service...), coin counters, LED and marquee outputs, and slot selection signals for multi-slot boards.
SYSTEMB is used to gate the SLOT* outputs.
Pinout
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)
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