External Keyboard/Ps2 Mouse Interface - Intel 3100C Service Manual

External Keyboard/PS2 Mouse Interface

The external keyboard/PS2 mouse interface connector has the following configuration:
Pin
External USB (Universal Serial Bus) Interface
Port A:
Port B:
Description
1 EKDA
2 EMDA
3 GND
4 VCC
5 EKCLK
6 EMCLK
7 GND
8 GND
9 GND
Pin Description
1 USB_VCCA
2 USBP0-
3 USBP0+
4
Pin Description
1 USB_VCCB
2 USBP1-
3 USBP1+
4
GND
GND
20