fredag den 29. august 2014

The processor card

The processor card is basically just a z80 with buffered buses and some functions. A clean reset circuit, and two clocks are on board as well. A manual step clock, and a slow clock ( a couple of Hz). This board, the clock and reset in particular, is inspired by CPUville's homebrew z80 project. This also served as the inspiration for this project. 

This is the card. The red % button is the reset, and the toggle switch is the manual clock. the header matrix to the left of the processor is to select the clock via jumper, so you don't accidentally switch on two clocks at the same time. 
Wire color code: RED: When it was closest. BLUE: When that was closest. Power is mainly routed on the solder side.


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