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SEGA 32X exereunesis · add-on teardown · 1994
★ exereunesis · add-on teardown · 1994 ★

A mushroom-shaped cap that plugged into the Genesis cartridge slot, the 32X strapped two Hitachi SH-2 processors onto the 16-bit machine as a stopgap before the Saturn. It split Sega's audience, confused buyers, and was abandoned within months — a cautionary tale of bridging hardware.

carbonsilicon
DLW-ATTRIBUTE · ACI
governor · David Lee Wise (ROOT0)
instance · AVAN (Claude / Anthropic) · locked
subject · SEGA 32X · 32X
⟦SEGA 32X:32X:9ee11f⟧
CC-BY-ND-4.0 · TRIPOD-IP-v1.1

The Four Natures

each piece emerges by one of four natures

natural
of the living body — the cell, the tissue, the organism, the matter that does the work
ethereal
of the information and the limit — the threshold, the pattern, the open question, the decision with no decider
spiritual
of mind and meaning — the intelligence claimed, the pioneer's insight, what it says about life
electrical
of the rule and the signal — the feedback law, the molecule, the mechanism beneath the smarts

The Idea

the three-beat story

Two SH-2s on a Cap
the architecture

The 32X adds two Hitachi SH-2 CPUs at 23 MHz and its own video processor, plugged into the Genesis cartridge slot and overlaying graphics on the host's output. Real extra power, awkwardly bolted on.

A Bridge Too Far
the strategy

Sega meant it as a cheap step toward 32-bit gaming before the Saturn arrived — but launching a stopgap months before a flagship split the market and the message, and developers had little reason to support it.

A Tower of Sega
the mess

Stack a 32X on a Genesis with a Sega CD beneath and you had three boxes, three power supplies, and a tangle of cables — the emblem of Sega's fragmented early-90s hardware strategy.

The Teardown — Click a Block

the machine, laid out as a block diagram — the main processor on top, the rest of the silicon beneath, buses showing what talks to what. Click any block to read its spec. An accurate architecture diagram (a teardown illustration, not a schematic).

click any block →

The Spec Sheet

the headline numbers — the spec edition

Add-on CPUs
2× Hitachi SH-2

23 MHz each.

Video
own VDP

overlays on the Genesis.

Memory
+256 KB

atop the Genesis.

Host
Genesis cartridge slot

plugs in on top.

Lifespan
months

quickly abandoned.

The Reckoning

the teardown, and the honesty about it

The Domain: Open It and Spec It

the teardown

  • EXEREÚNESIS takes a real, made machine apart down to the chip and writes the honest spec — not a story-world but a technical anatomy.
  • >One of a growing series of console teardowns; siblings link from the marquee.

Two-Layer Honest

datasheet vs lore

  • Settled: the dual SH-2 CPUs, the added video processor, and the cartridge-slot host design are documented.
  • Flagged: the 'tower of Sega' image and the strategic confusion are widely-attested history — stated as the documented commercial story, not embellished.

Render, Not Invent

sourced

  • Summarized from the public technical record for the SEGA 32X; the manufacturer and its engineers are cited, not minted.
  • No ROMs, BIOS, or copyrighted code are reproduced. Emergents are physical components; the block diagram is an illustration, not a schematic.

The Roster

every chip and part as an ACI .agent — each a birth certificate & a nature (6)

An EXEREÚNESIS sphere (ἐξερεύνησις — the searching-out) — a TECHNICAL TEARDOWN: open a made machine, explore every chip, and write the spec. Rendered from the public technical record; render-not-invent, two-layer honest — documented specifications are stated as fact, marketing and lore are flagged. No ROMs, BIOS, or copyrighted code are reproduced. Manufacturers and engineers are cited, not minted. Each component is named by its nature: natural, ethereal, spiritual, or electrical.