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MSX IDC Adapter

costarc·MSX_FPGA_Hat·Hardware Interface/Previous Versions/v1.0/MSX_IDC_Interface.kicad_pcb

MSX IDC Adapter PCB layout, top view — open source board by costarc

About the MSX IDC Adapter PCB

MSX IDC Adapter is an open source PCB design by costarc, published on GitHub under the MIT license. It is a 2-layer board measuring 103 × 66 mm, with 25 components from 7 distinct parts.

Other key parts include the 74LVC245A and 4077. By type, the board carries 7 connectors, 6 ICs, 6 capacitors and 5 resistors.

It belongs with the retro computing and dev boards & breakouts designs in this gallery.

From the project

A Cartridge interface that converts MSX 5v signal levels to 3v, exposing an IDC connector for external devices that operates at 3v level.

Note: Current master branch not ready for fabrication due to major changes in the design. I am re-writing the new VHDL Top level design to demux the interface signals and exposed the MSX BUS according to the new interface changes (view v2.0 notes below).

V2.01 - incompatible with previous cores. - Removed U4OEn signal - this bus is not shared - can be grounded - Fixed some silk placement - Moved signals REFRESH,CS2 to own pins. This makes cores incompatible with version 2.0

Main components on the MSX IDC Adapter

74LVC245A4077

MSX IDC Adapter bill of materials (BOM)

25 components, 7 distinct parts.

QtyPartRefs
5
74LVC245A
U1, U2, U3, U4, U5
1
4077
U6
1
DE1 GPIO
J1
6
Conn_01x03_Male
J2, J3, J4, J5, J6, J7
1
MSX_BUS
CONN1
6
0.1uf
C1, C2, C3, C4, C5, C6
5
2.2K
R1, R2, R3, R4, R5

MSX IDC Adapter design files

The KiCad project lives in the costarc/MSX_FPGA_Hat repository on GitHub; these links point at the commit this page was built from.

MSX IDC Adapter: common questions

How big is the MSX IDC Adapter PCB?

The MSX IDC Adapter measures 103 × 66 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MSX IDC Adapter?

25 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the MSX IDC Adapter design files?

From the costarc/MSX_FPGA_Hat repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MSX IDC Adapter design in my own project?

Yes, under the terms of its MIT license, which costarc chose for the repository.

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