Split Second

Partial

Stern1981STERN-MPU200stern.split-second.1981

OPDB IPDB stern/split-second-1981.mdstern/split-second-1981.json

Wire it up

what an authoring tool needs first
Bind this ROM
splitsec

2 ROM sets resolve to this machine. Clones share the definition unless a hardware difference is listed.

Controller platform
pinmame.stern-mpu200

PinMAME already reports logical active state. Do not invert again in the table — normally-closed is a physical fact recorded per switch, not a runtime transform.

Displays

No display inventory recorded yet.

Address space
Switches
5–40 (19)
Solenoids
12–12 (1)

Coverage

Partial

Real evidence exists, but authoring requirements are still missing or in conflict. Verify before shipping a table.

Completion19%

Progress is derived from the fixed author-readiness requirements. It helps rank unfinished work, but only a 100% author-ready definition passes the publication gate.

Catalog Identity
validated
Address Enumeration
unknown
Semantic Naming
unknown
Physical Wiring
unknown
Mechanisms
unknown
Variant Coverage
candidate
Recreation Knowledge
unknown
Still missing · 13
Driver MappingInput EnumerationInput SemanticsOutput EnumerationOutput SemanticsDisplay InventoryMechanism InventoryMechanism BehaviorPolarityVariant DifferencesRecreation NotesProvenanceSpatial Placement

Switches

The addresses PinMAME reports as closed. Numbers are the public API values, not matrix hardware pins.

19 addresses

Switch map

Sequential addresses, grouped in columns of eight.

used unused
 
+0
+1
+2
+3
+4
+5
+6
+7
1–8
9–16
17–24
25–32
33–40
Hover or tap an address to identify it.
19 shown
# Name Device ID Evidence
5
Spinner1
switch.spinner1 candidate
8
Trigger R4
switch.trigger-r4 candidate
9
Target T6
switch.target-t6 candidate
10
Target T7
switch.target-t7 candidate
11
Target T8
switch.target-t8 candidate
12
Target L2
switch.target-l2 candidate
13
Right Sling Shot
switch.right-sling-shot candidate
14
Left Sling Shot
switch.left-sling-shot candidate
15
Bumper002
switch.bumper002 candidate
16
Bumper001
switch.bumper001 candidate
20
Trigger2
switch.trigger2 candidate
21
Trigger1
switch.trigger1 candidate
22
Trigger R2
switch.trigger-r2 candidate
23
Trigger L2
switch.trigger-l2 candidate
24
Target L1
switch.target-l1 candidate
37
Kicker2
switch.kicker2 candidate
38
Kicker3
switch.kicker3 candidate
39
Trigger L1
switch.trigger-l1 candidate
40
Trigger R3
switch.trigger-r3 candidate

Controlled devices

Everything the ROM can energise, grouped the way a table author builds it.

Coils, magnets & motors

1
1 shown
# Name Device ID Evidence
12
Lockout
coil.lockout candidate

Recreation notes

Working knowledge that has no schema field yet — edition differences, tuning values, pitfalls.

Coverage: partial - machine identity plus candidate-only I/O attachments. Playfield devices, wiring, mechanisms, and behavior are evidenced only as unverified candidates.

This record was promoted from the generated catalog stub stub.pinmame.splitsec by the catalog-wide identity pass of 2026-08-29. The promotion resolves machine identity and carries the catalog's residual driver grouping over unchanged, the platform and device attachments below were added by the 2026-08-29/30 candidate passes and assert nothing beyond candidate provenance. Every requirement in the definition's coverage.missing is genuinely outstanding.

Identity

  • PinMAME catalog: root driver splitsec, description "Split Second", manufacturer "Stern", catalog year "1981".
  • OPDB record GRLbz-MDnxo (IPDB 2297) names this machine "Split Second" (Stern Electronics, manufacture date 1981-01-08); the resolved identity rests on the agreement of the PinMAME catalog and this reviewed mapping.
  • The definition's driver list is exactly the clone tree PinMAME declares under splitsec; whether every listed driver really runs on this physical machine is unverified.

Drivers this record holds

  • splitsec (1981, Stern).
  • splitsfp (1981, Stern, clone of splitsec).

PinMAME source contract (candidate)

  • The pinned PinMAME source declares splitsec at src/wpc/stgames.c:1129 with machine module by35_mST200v; the definition declares controller platform pinmame.stern-mpu200 from it.

VPX script candidates (candidate)

  • 1 retained community table script(s) declare this machine's driver; their extracted switch/lamp/solenoid/GI candidates are carried as 20 candidate devices. When curator work weighs sources, a retained script outranks emulator-derived candidates for runtime semantics, but every device here is still a candidate until a known-working table is verified against this exact physical machine.

What a curator must establish next

Full input, output, and display enumeration with semantic names; physical wiring and polarity; mechanism inventory and behavior; variant differences across the clone tree; recreation knowledge from a manual, schematic, or known-working table; runtime provenance; and a normalized spatial placement for every physical device. No manual, schematic, or runtime-harness evidence is retained for this machine yet; the candidate sections above are the only retained I/O evidence so far.

ROM sets

Every driver that resolves to this physical machine.

ROM set Description Year Parent Hardware
splitsfpSplit Second (Free Play) 1981splitsec—
splitsecSplit Second 1981——

Parent set: splitsec — clones share this definition unless a hardware difference is noted.

Pinball memory maps

External source LGPL-3.0-only1 map

RAM layouts published by an independent project and mirrored here at a pinned commit. They are not part of this machine’s definition: nothing below was used as evidence for the definition, and none of it counts towards coverage. Check claims against the upstream project.

Upstream
tomlogic/pinball-memory-maps
Commit
d8693b9

This program makes use of content from the Pinball Memory Maps project.

m200-7digit-B.map.json

stern-m200v3format 0.8

maps/stern/m200/m200-7digit-B.map.json

Applies to ROMs
splitsec
Also covers
freefalldragfistironmaidlightninviper
Sections
adjustmentsauditsgame_statehigh_scores
Map JSONMap sourcePlatform JSONPlatform source

stern-m200 defines the RAM layout this map’s offsets are read against — the map is not interpretable without it.

Evidence

Every claim above traces to one of these. When they disagree: a known-working VPX script wins on controller addresses and causality, the manual wins on wiring and construction, pinned PinMAME wins on emulator routing and display layout.

  • PinMAME catalog

    BSD-3-Clause

    pinmame.catalog.8371478a7640

    PinmameGetGames

    8371478a7640
    by
    PinMAME contributors
    rev
    8371478a7640

  • PinMAME source

    BSD-3-Clause

    pinmame.core.8371478a7640

    src/wpc/stgames.c:1129 (machine module by35_mST200v)

    src/wpc/stgames.c
    by
    PinMAME contributors
    rev
    8371478a7640

  • VPX script

    vpx-script.cfba64fd95ba927b

    vpxtable-scripts: Split Second (Stern 1981) v600.vbs

    0c036bb61b4b
    by
    Authors credited in Split Second (Stern 1981) v600.vbs and repository contributors
    rev
    0c036bb61b4b
    sha256
    cfba64fd95ba…

Something wrong or missing?

This definition still has 13 unmet requirements, listed under Coverage above. Fixes belong in the definition itself — editing on GitHub forks it for you and opens the pull request.

Cite a source for anything you change — a manual page, a line in a working VPX script, PinMAME source, or a reading from the machine's own service menu. Claims without provenance cannot be validated.

Edit the definition Edit the note Report a problem
Before you startCONTRIBUTING.mdschemas/machine.schema.jsondocs/MACHINE_DEFINITIONS_PLAN.md How to read a definition

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