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11 serial ports, 12 real time clock, 13 system monitoring – IEI Integration WAFER-LX v1.22 User Manual

Page 37: 14 usb interfaces, 15 bios, Erial, Orts, Lock, Ystem, Onitoring

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WAFER-LX Motherboard

Page 19

2.11 Serial Ports

The WAFER-LX has two high-speed UART serial ports, configured as COM1 and COM2.

The serial ports have the following specifications.

ƒ 16C550 UART with 16-byte FIFO buffer

ƒ 115.2 Kb/s transmission rate

COM2 can be configured as RS-232, RS-422 or RS-485.

2.12 Real Time Clock

256-byte battery backed CMOS RAM

2.13 System Monitoring

The WAFER-LX is capable of self-monitoring various aspects of its operating status

including:

ƒ CPU, chipset, and battery voltage, +3.3 V, +5 V, and +12 V

ƒ RPM of cooling fans

ƒ CPU and board temperatures (by the corresponding embedded sensors)

2.14 USB Interfaces

The WAFER-LX has four USB interfaces, two internal (on one pin header connector) and

two external. The USB interfaces support USB 2.0.

2.15 BIOS

The WAFER-LX uses a licensed copy of AWARD BIOS. The features of the flash BIOS

used are listed below:

ƒ SMIBIOS (DMI) compliant

ƒ Console redirection function support

ƒ PXE

(Pre-Boot Execution Environment) support

ƒ

USB booting support