Super CD·ROM²
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Super CD·ROM²
Super CD·ROM² with interface unit
The Super CD·ROM² is an attachment that fits onto the EXT-BUS connector of all PCE-compatible systems except the PC-Engine Shuttle. It features the following components:
- Single-speed CD-ROM drive.
- 2K of BRAM.
- 512Kx8 ROM containing the Super System Card (v3.0) program.
- 256Kx8 SRAM accounting for the combined 64K found in the Interface Unit and 192K from the Super System Card.
- Standard 8-pin DIN A/V jack with composite video and stereo audio outputs.
- 40-pin EXT-I/O connector (trapdoor).
- NEC Part No.: PI-CD1
- AC Adapter: PAD-125
- Power Supply: 12V DC, positive tip, 12W
The Super CD·ROM² consists of a single PCB that includes the equivalent of the Interface Unit chipset, Super System Card RAM and ROM, and CD-ROM Player with some minor changes. The following ICs are used:
- Sony CXA1081M: RF signal processor.
- Sony CXA1082BQ: Servo signal processor.
- Sony CXD1167Q: PCM decoder and CD control.
- NEC uPD78C14GF: Microcontroller.
- NEC uPD6378GF: Microcontroller glue logic.
- NEC uPD4364G: 8Kx8 SRAM for the microcontroller, presumably to buffer sectors.
- Sanyo LC7881: DAC.
- NEC uPD91317GD: HuC6280 glue logic, ADPCM controller.
- Oki M5205: Single channel ADPCM decoder.
- BU4053BF: 2-channel analog multiplexer for routing CD-DA and ADPCM output through the volume attenuator.
- Mitsubishi MB5113L: Voltage controlled volume attenuator.
- Oki M41464 (x2): 64Kx4 DRAM for ADPCM sample storage.
- Sanyo LC3517BML: 2Kx8 SRAM, used as BRAM for data backup.
- Sony CXK581001M (x2): 128Kx8 SRAM, used as CD-RAM/Super System Card RAM.
- NEC uPD23HC4001EGW: 512Kx8 mask ROM, stores the Super System Card program.
The Super CD·ROM² will run fine using Radio Shack AC adapter #273-1667, which can supply 12V at 800mA. The officially recommended amperage is unknown.