Hello, everyone:

I know this is very old topic, but I still want to know the answer..

on the page below http://www.beyondlogic.org/keyboard/keybrd.htm,
he wrote:
The Host to Keyboard Protocol is initiated by taking the KBD data line low. However to prevent the keyboard from sending data at the same time that you attempt to send the keyboard data, it is common to take the KBD Clock line low for more than 60us. This is more than one bit length. Then the KBD data line is taken low, while the KBD clock line is released.

The keyboard will start generating a clock signal on it's KBD clock line


I tried to do the same thing, but I cann't get the same result. What I means is The keyboard didn't start generating a clock signal on clock line?

Any idea about this?
Thanks..

Frank