Datasheet

Intel
®
815E Scalable Performance Board Development Kit Manual 27
Theory of Operation
3.4.6.7 Audio Subsystem
The evaluation board has an integrated (on-board) AC’97 compliant subsystem.
Audio Subsystem Features:
• Line input (back panel)
• Line output (back panel)
• Microphone input (back panel)
3.4.6.8 Game Port Connector
The game port connector is a standard 15-pin DSUB connector for attaching a joystick, game pad
or other MIDI device.
3.4.6.9 Keyboard/Mouse
The keyboard and mouse connectors (U1) are PS/2 style, 6-pin stacked miniature DSUB
connectors. The top connector is for the mouse and the bottom connector is for the keyboard.
3.4.7 Expansion Connectors
The evaluation board contains the following expansion connectors:
• One AGP 4x slot
• Three PCI 32/33 slots
• One CNR slot
• One V-Bus connector
3.4.7.1 AGP Connector
AGP support is provided through the 82815 GMCH. One industry standard AGP connector
(AGP1) is provided on the evaluation board. The AGP connector can accept a Graphics
Performance Adapter (GPA) to enhance system graphics performance by providing dedicated
display cache for internal graphics.
AGP Features:
• AGP 1X, 2X, and 4X transfer rates
• Differential strobes for more accurate timing
Dual mode buffers allow the use of 1.5 V and 3.3 V compliant devices.
AGP add-in cards must comply with the Rev. 2.0 Accelerated Graphics Port Specification.