I am hoping somebody has or will design a PCB for RC2014 with quad serial, using a chip in current mainstream supply from quality vendors (Mouser etc)
e.g. perhaps(but not necessarily) using
2.97V TO 5.5V QUAD UART WITH 16-BYTE FIFO, PLCC flavour.
The reason for this is that a number of people have expressed interest in MPM, FUZIX etc with multiple serial connections, and BBS systems.
I personally would like a system with at least 3 serial ports for console, printer and kermit or cp/net.
Ideally the chipset would be backward compatible with ACIA 68B50 so that various existing ROMs can still work with one or two serial connections (e.g. from Spencer Owen, Steve Cousins, Phillip Stevens, Wayne Warthen).
A design should allow software selectable baudrate, hopefully on a per port basis but that may be pushing a bit too much.
Since the new chip might be plcc in a socket to avoid smd soldering, then use of a plcc fpga/cpld etc to consolidate associated logic is not unreasonable.
Pushing to keep functional back compatibility with legacy serial might make this adhere to "retro" flavour and keep purists on board.
This post was born out of problems I am having with my new 61f ACIA serial board, where the only uart chips come out of China, and I wonder about the quality. I notice on FB someone posting a problem with ACIA RC2014 Mini, where the symptoms, like mine, are lost data at 115200, easily and often, so that download of text to feed into download.com
won't work. In my case I have tried multiple usb/serial devices.
I hope that someone may be inspired to create such a board, but failing that, at least input to show whether such an idea can be workable would be good. It is of course possible that in the huge world of rc2014 that someone has something close or equal to this coming through the system.