Technical Product Specification

Table Of Contents
Functional Architecture Intel
®
Server Board S5400SF TPS
Revision 2.02
Intel order number: D92944-007
36
Expansion bus allowing connection to an external Flash PROM (asynchronous or
synchronous), SRAM, or SDRAM.
Serial flash interface
Five SMB ports, two that support FML (either master or slave)
RS-232 serial port (UART)
Cryptographic module supporting AES and RC4 encryption algorithms and SHA1 and
MD5 authentication algorithms with internal DMA and raw checksum support
Two keyboard controller style (KCS) interfaces residing on the LPC bus
General-purpose input/output (GPIO) interface
MAC CSR interface
Timer interface
Host DMA interface
3.3.4 USB 2.0 Support
The Intel
®
6321ESB I/O Controller Hub contains an enhanced host controller interface that
supports USB high-speed signaling. High-speed USB 2.0 allows data transfers up to 480 Mb/s,
which is 40 times faster than full-speed USB. The I/O Controller Hub also contains four
universal host controller interface (UHCI) controllers that support USB full-speed and low-speed
signaling.
The Intel
®
6321ESB I/O Controller Hub supports eight USB 2.0 ports. All eight ports are capable
of high-speed, full-speed, and low-speed operations. Two external connectors are located on
the back edge of the server board. One internal 2x5 header is provided, capable of supporting
two optional USB 2.0 ports. Three USB ports are routed through the bridge board connector
providing optional USB support for a system control panel or other USB requirements. An
additional USB port is dedicated to the Intel
®
Remote Management Module 2 (Intel
®
RMM2)
connector.
3.3.4.1 Native USB Support
During the power-on self test (POST), the BIOS initializes and configures the USB subsystem in
accordance with Chapter 14 of the Extensible Firmware Interface Reference Specification,
Version 1.1. The BIOS is capable of initializing and using the following types of USB devices:
USB Specification-compliant keyboards
USB Specification-compliant mice
USB Specification-compliant storage devices that utilize bulk-only transport mechanism
USB devices are scanned to determine if they are required for booting.
The BIOS supports USB 1.1 and USB 2.0 compliant devices and host controllers.
During the pre-boot phase, the BIOS automatically supports the hot-addition and hot-removal of
USB devices. For example, if a USB device is hot-plugged, the BIOS detects the device
insertion, initializes the device, and makes it available to the user. Only on-board USB
controllers are initialized by the BIOS. This does not prevent the operating system from
supporting any available USB controllers, including add-in cards.