Intel D865GLC Manual - Page 24

• Enhanced Capabilities Port (ECP). Floppy Controller The I/O controller is software compatible with the N82077 floppy drive controllers and supports both PC-AT and PS/2 modes. In the Setup program, the floppy interface can be configured for the following floppy drive capacities and sizes: • 360 KB, 5.25-inch • 1.2 MB, 5.25-inch • 720 KB, 3.5-inch • 1.2 MB, 3.5-inch (driver required) • 1.25/1.44 MB, 3.5-inch • 2.88 MB, 3.5-inch PS/2 Keyboard and Mouse Interface PS/2 keyboard and mouse connectors are located on the back panel. The +5 V lines to these connectors are protected with a PolySwitch circuit that, like a self-healing fuse, re-establishes the connection after an over-current condition is removed. The keyboard controller contains the AMI Megakey keyboard and mouse controller code, provides the keyboard and mouse control functions, and supports password protection for power on/reset. A power on/reset password can be specified in Setup. The keyboard controller also supports the hot-key sequence for a software reset. This key sequence resets the computer's software by jumping to the beginning of the BIOS code and running the Power-On Self Test (POST). Audio Subsystem The D865GLC motherboard provides a Flex 6 audio subsystem based on the Analog Devices AD1985 codec. The audio subsystem supports the following features: • Advanced jack sense with Auto Topology Switching that enables the audio codec to recognise what device is connected to an audio port and alerts the user if the wrong type of device has been connected. • Split digital/analog architecture for improved S/N (signal-to-noise) ratio: > 94 dB The Flex 6 audio subsystem includes the following features: • Intel 82801EB I/O Controller Hub (ICH5) • Analog Devices AD1985 audio codec • Microphone input that supports a single dynamic, condenser, or electrets microphone D865GLC Motherboard Manual 23