NEC TurboGrafx-16 Hardware Gibbums
Various electronics pertaining to NEC's TurboGrafx-16, PC-Engine, and numerous other members of this odd console family.


MC-GENJIN Memory Mapper
2011-7-31

MC-Genjin is a memory mapper for the TurboGrafx-16 which supports up to 8MB of ROM, two general purpose chipselects, and dynamic region switching - allowing for a true multiregion HuCard without the use of mechanical switches or converters.

Support for this mapper has been generously included in Mednafen.

Design Materials
MC-GENJIN VHDL + POF for an Altera EPM7032LC44, created using Altera MAX+plus II 10.2.
Standards Recommendations for polite MC-Genjin software, includes helpful hints for creating your own mappers.
Equates Written for use with WLA-DX.
Startup Routine Example bivector reset handler for WLA-DX.

Software
Super CD-ROM DERP v3.6 UPS Patch for expanding NEC's Super System Card 3.0 to support 512KB + 64KB of RAM using an MC-Genjin with two 256KB SRAMs attached, this can be helpful for developing translation patches or new software. Check out the readme for details.



CD Stupid Card 4.0
2015-3-29 (PCB), 2015-5-7 (Mapper)

This enhanced System Card features 512KB of ROM in a removable DIP 39SF040 and 2MB of SRAM.

Featuring the new MC-Genjin CD - it supports a Super System Card 3.0 compatible memory layout, multiregion operation, and a special linear mode which maps the card's lower megabyte of SRAM over the entire HuCard address region ($000000 - $0FFFFF, MPR $00 - $7F).

The two indicator LEDs illuminate when an operating region has been set (D1, Upper) and when switched into linear mode (D2, Lower).


Design Materials
MC-GENJIN CD Verilog + POF for an Altera EPM7032LC44, created using Altera MAX+plus II 10.2.
Documentation How to use the CD-Stupid Card's features in your own software.
Gerbers PCB Layout.
Note the TSOP-II SRAMs must have pins 7, 8, 15, 16, 29, 30, 37 and 38 removed and the remaining pins curled under (similar to an SOJ) in order to properly fit on their pads. I messed up the layout, my bad.
Components Required electronic denizens.

Software
Manufacturing Test Verifies operation of MC-Genjin CD and both SRAMs.
Stupid CD-ROM DERP v4.1 UPS Patch for expanding NEC's Super System Card 3.0 to support the enhancements in the CD-Stupid Card, this can be helpful for developing translation patches or new software. Check out the readme for details.



MC-Genjin 4MB Plus
2011-10-25

Couples an MC-Genjin with 4MB of Flash ROM, 8KB FRAM, and 128KB SRAM.

The FRAM and SRAM are connected to CS0 ($080000 - $0BFFFF, MPR $40 - $5F) and CS1 ($0C0000 - $0FFFFF, MPR $60 - $7F), respectively.


Design Materials
Gerbers + POF PCB Layout and customized MC-Genjin POF.
Components Required electronic denizens.

Software
Manufacturing Test Verifies operation of MC-Genjin, the 8KB FRAM, and 128KB SRAM.



TurboBreak-16
2011-9-16

Mongo like big solderpoints.

Design Materials
Gerbers PCB Layout.


All content by Osman D. Celimli unless otherwise noted.
Not all of said content guaranteed to be useful. Some is probably quite old and dumb.
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