Table of Contents MultiComp On EP2C5 MultiComp On RETRO-EP4CE15 MultiComp On RETRO-EP4 MultiComp On BASE-EP4CE6 Additional FPGA Support Cards EP4 FPGA BREAKOUT VGAX49 SD CARD X49 TinyPS2 FTDI-49MM

MultiComp On EP2C5

Land Boards EP2C5-DB FPGA Retro-Computer card
- Attaches to Cyclone II EP2C5 Mini Dev Board
- Duplicates Grant's design down to the same pin maps
VGA
- 6 bit video VGA (2:2:2 R:G:B)
External SRAM
- 128KB of SRAM for banked use in CP/M
PS/2 Keyboard Mini-DIN connector
Connector for serial ports
- Can attach inexpensive FTDI USB to serial converter
  - Also, Land Boards FTDI-49MM
- Supports hardware handshake (out) for high speed serial
2x 8-bit ports with Power/Ground
SD Card (Full size, some builds support SDHC cards)
DC power jack (on FPGA card)
Full MultiComp Support of classic 8-bit Retrocomputers
- Z80
- 6502
- 6809
- 6800
Mounts Cyclone II EP2C5 Mini Dev Board
- EP2C5T144C8N FPGA Card - Ebay listing

MultiComp On RETRO-EP4CE15

1MB SRAM
- IS62WV10248EBLL-45TLI, SRAM. Async, 1Mbx8, 45ns
- For banked use in CP/M and as RAM Disk in other 8-bit micro designs
VGA connector
- 6 bit video (2:2:2)
PS/2 connector
FTDI USB to serial converter
- Genuine FT230XS FTDI USB to Serial chip
- USB B
- Tx/Rx LEDs
SD or SDHC Card
- Can do micro SDHC card using SD card adapter
2x6 Header
Power card from either FPGA card connector or USB power
50-pin I/O Connector
95x95mm form factor card
4x 6-32 mounting holes
Low Profile
Land Boards RETRO-EP4CE15 design
- Attaches to QM Tech Cyclone IV FPGA Board or
- Attaches to QM Tech Cyclone V FPGA Board
Full MultiComp Support of classic 8-bit Retrocomputers
- Z80
- 6502
- 6809
- 6800
Other builds
- TeeSide II 68000 Build
- 68000 Build
- pdp2011 - PDP-11 Build
- R32V2020 RISC CPU - Our design
Supports Cyclone IV or Cyclone V FPGA Cards by QMTECH
- EP4CE15 Cyclone IV FPGA Card (tested)
- EP4CE55 Cyclone IV FPGA Card (untested)
- 5CEFA2F23 Cyclone V FPGA Card (tested)
- 5CEFA5F23 Cyclone V FPGA Card (untested)

Land Boards BASE-EP4CE6 card is a breakout board
- Attaches to Land Boards EP2C5-DB card
- Adds extra logic and RAM resources beyond the EP2C5 FPGA
  - Can do up to 16K of Internal SRAM
- Wiring is here

EP4 FPGA Breakout Wiki page
Daughtercard for
- A-C4E6 Cyclone IV FPGA EP4CE6E22C8N Development Board
- A-C4E10 Cyclone IV FPGA EP4CE10E22C8N Development Board

VGA Adapter Wiki card
Digital VGA adapter
16-bit digital video
- 5:6:5 (R:G:B) mapping (maximum)
- 2:2:2 (R:G:B) mapping (option)