Keyboard/Mouse - Epson SCE8720C Series Hardware Manual

CARD-PCI/GX Hardware Manual

4.4 Keyboard/mouse

The keyboard/mouse interfaces can be connected to IBM/PS2 type keyboard and mouse.
Connection method is shown below.
SCE8720C
KBDATA
KBCLK
MSDATA
MSCLK
Figure 4.3 Keyboard/mouse interface connection
All the keyboard and mouse signals require pull-up resistance of 4.7kΩ or so.
Pull-up resistance of 100kΩ or so is required even when not in use.
42
4.7K×2
4.7K×2
EPSON
+5V
+5
Keyboard
+5
Mouse
Rev.A