Table 2.21: Programmable Buzzer Control Bit
| SPKS1 | SPKS0 |
| | |
Beep on | 0 | 0 |
| | |
Short beep | 0 | 1 |
| | |
Normal beep | 1 | 0 |
| | |
Long beep | 1 | 1 |
| | |
PS/2 Keyboard and Mouse Connector
The UNO-3074 provides a PS/2 keyboard and PS/2 mouse connector. A 6- pin mini-DIN connector is located on the front panel of the UNO-3074. UNO-3074 comes with an adapter in the accessory package (see section 1.5) to convert from the 6-pin mini-DIN connector to two 6-pin mini-DIN connectors for PS/2 keyboard and PS/2 mouse connection. Please refer to Appendix A.8 for its pin assignments.
2.10 USB Connector
The USB connector is used for connecting any device that conforms to the USB interface. Many recent digital devices conform to this standard. The USB interface supports Plug and Play, which enables you to connect or disconnect a device whenever you want, without turning off the computer.
The UNO-3074 provides four connectors of USB interfaces. The USB interface complies with USB UHCI, Rev. 2.0 compliant. The USB inter- face can be disabled in the system BIOS setup. Please refer to Appendix A.9 for its pin assignments.
2.11 PCMCIA: PC Card Slot
The UNO-3074 provides one PC Card slot that supports CardBus (Card-
32)cards and 16-bit (PCMCIA 2.1/JEIDA 4.2) card standards. It supports +3.3 V, +5 V and +12 V @ 120 mA working voltage. The PC Card is 85.6 mm long by 54 mm wide (3.37" x 2.126"), using a 68-pin connector and a removable module standardized by PCMCIA that is known as “PCMCIA card”
Note: PCMCIA interrupt assignment is IRQ 9. If you use Win2000 OS you need to check the IRQ manually.