Specifications

Intel
®
810E2 Chipset Platform
R
24 Design Guide
1.3.9. Low Pin Count (LPC) Interface
In the 810E2 chipset platform, the Super I/O (SIO) component has migrated to the Low-Pin-Count (LPC)
interface. Migration to the LPC interface allows for lower-cost Super I/O designs. The LPC Super I/O
component requires the same feature set as traditional Super I/O components. It should include a
keyboard and mouse controller, floppy disk controller, and serial and parallel ports. In addition to the
Super I/O features, an integrated game port is recommended because the AC’97 interface does not
provide support for a game port. In systems with ISA audio, the game port typically existed on the audio
card. The fifteen-pin game port connector provides for two joysticks and a two-wire MPU-401 MIDI
interface. Consult your preferred Super I/O vendor for a comprehensive list of the devices offered and
the features supported.
In addition, depending on system requirements, specific system I/O requirements may be integrated into
the LPC Super I/O. For example, a USB hub may be integrated to connect to the ICH2 USB output and
extend it to multiple USB connectors. Other SIO integration targets include a device bay controller or an
ISA-IRQ-to-serial-IRQ converter to support a PCI-to-ISA bridge. Contact your Super I/O vendor to
ensure the availability of desired LPC Super I/O features.