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Intel Desktop Board DG33TL Technical Product Specification
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1.9 Legacy I/O Controller
The I/O controller provides the following features:
• Consumer Infrared (CIR) headers
• One serial port header
• Serial IRQ interface compatible with serialized IRQ support for PCI systems
• PS/2-style mouse and keyboard interfaces
• Intelligent power management, including a programmable wake-up event interface
• PCI power management support
The BIOS Setup program provides configuration options for the I/O controller.
1.9.1 Consumer Infrared (CIR)
The Consumer Infrared (CIR) feature is designed to comply with Microsoft Consumer
Infrared usage models. Microsoft Windows Vista* is the supported operating system
The CIR feature is made up of two separate pieces: the receiving header, and the
emitter header. The receiving header consists of a filtered translated infrared input
compliant with Microsoft CIR specifications, and also a “learning” infrared input. This
learning input is simply a high pass input which the computer can use to “learn” to
speak the infrared communication language of other user remotes. The emitter
header consists of two output ports which the PC can use to emulate “learned”
infrared commands in order to control external electronic hardware.
Customers are required to buy or create their own interface modules to plug into Intel
Desktop Boards for this feature to work.
1.9.2 Serial Port
The board has one serial port header located on the component side of the board. The
serial port supports data transfers at speeds up to 115.2 kbits/sec with BIOS support.
For information about Refer to
The location of the serial port header Figure 10, page 44
The signal names of the serial port header Table 15, page 46