CS/A65 keyboard emulator
This board allows to emulate a real matrix keyboard for another
computer. A matrix keyboard uses a set of input lines and
each keypress connects an input line with a specific output
line, which is detected by the host cpu. This is emulated
by the board using a shared memory. Access to the shared
memory is time-shared.
Version: 1.0C
Status: ok
Notes
| The board implements two keyboard ports with a 8x8 matrix each, using 512 byte of I/O memory. |
Files
| csakeyemudesc.txt | |
| csakeyemu.fig | |
| csakeyemu.png | |
| csakeyemu.ps.gz | |
| csakeyemu.jpg |
The block diagram shows the dual access to the
shared memory.