Intel S975XBX2 Product Specification - Page 29

Product Description • SMBus 2.0 support • Wake# signal supporting wake events from ACPI S1, S3, S4, or S5 • Software compatible with the PCI Power Management Event (PME) mechanism defined in the PCI Power Management Interface Specification, Rev. 1.1 1.8 IEEE-1394a Connectors The optional IEEE-1394 interface addresses interconnection of both computer peripherals and consumer electronics with these features: • IEEE-1394a operation • Support for up to 63 peer-to-peer devices • Operation ranging from 100 Mbits/sec to 400 Mbits/sec (depending on cable type) • Connection over short and long distances • Support for both asynchronous and isochronous data transfer As a manufacturing option, the board includes two IEEE-1394a connectors as follows: • One IEEE-1394a connector located on the back panel. • One IEEE-1394a front-panel header located on the component side. For information about The location of the back panel IEEE-1394a connector The location of the front panel IEEE-1394a header The signal names of the front panel IEEE-1394a header Refer to Error! Reference source not found., page Error! Bookmark not defined. Figure 16, page 56 Section 2.7.2.6, page 66 1.9 Legacy I/O Controller The legacy I/O controller provides the following features: • One serial port • One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP) support • Serial IRQ interface compatible with serialized IRQ support for PCI Conventional bus systems • PS/2-style mouse and keyboard interfaces • Interface for one 1.44 MB or 2.88 MB diskette drive • Intelligent power management, including a programmable wake-up event interface • PCI Conventional bus power management support The BIOS Setup program provides configuration options for the legacy I/O controller. 1.9.1 Serial Port The board has one serial port connector located on the back panel. The serial port supports data transfers at rates of up to 115.2 kbits/sec with BIOS support. 29