Johnny's home-built CPU corner (and other stuff, maybe)

I found this TL16C554 chip on AliExpress and decided to use it for a quad serial interface board.

The A channel are used to talk to a terminal program on the PC, like Tera Term or other.

The three other channels are free to use for other stuff.

A few weeks ago I decided to try to build a PC based "hard drive" for the 8080, using one serial port dedicated for that job. So I have made a small adjustment to the B port for that - not shown here.

XBUS Serial IO

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