Expansion
Options The mainboard comes with the following expansion options:
• Three 32-bit PCI slots
• One AGP slot (supports 1.5V AGP card only)
• Two IDE connectors which support four IDE channels and
a floppy disk drive interface
The L4S8M supports Ultra DMA bus mastering with transfer
rates of 33/66/100/133 MB/sec.
USB The USB 2.0 Controller is compliant with Universal Serial Bus
Specification Revision 2.0.
The USB 2.0 supports data transfer rates up to 480MB/sec for
high-speed devices and specifies a microframe that will be
1/8th of a 1msec frame. This allows the USB 2.0 devices to
have small buffers even at high data rates.
The USB 1.1 connectors and other full speed cables can sup-
port the higher speed of USB 2.0 without any changes.
The chipset has the following advanced USB features:
• Compliant with Enhanced Host Controller Interface
(EHCI) Specification Revision 0.95 and Universal Host
Controller Interface (UHCI) Specification Revision 1.1
• PCI multi-function device consists of two UHCI Host
Controllers for full/low-speed signaling and one EHCI Host
Controller core for high-speed signaling
• Supports PCI-Bus Power Management Interface Speci-
fication release 1.1
• Legacy support for all downstream facing ports
Onboard LAN
(optional) The RTL8100B(L) is a highly integrated and cost-effective
single-chip Fast Ethernet controller. It is enhanced with an
ACPI (Advanced Configuration Power Interface) management
function for PCI in order to provide efficient power manage-
ment for advanced operating systems with OSPM (Operating
System Directed Power Management)
It provides the mainboard with 10/100Mbps fast Ethernet con-
troller and integrated Ethernet PCI LAN capabilities.
IEEE 1394A Con-
troller Interface
(optional)
• Fully support provisions of IEEE1394-1995 for High- Per-
formance Serial Bus and the P1394a draft 2.0 standard
• Provides one compliant cable port at 100Mbits/s,
200Mbits/s, and 400Mbits/s
• Supports arbitrated short bus reset to improve utilization
of the bus
• Data interface to link-layer controller provided through
2/4/8 parallel lines at 50Mbits/s
• Support power-down feature to conserve energy in bat-
tery powered applications
Integrated I/O The mainboard has a full set of I/O ports and connectors:
• Two PS/2 ports for mouse and keyboard
• Two serial port
• One parallel port
• Four USB ports
• One 1394 port (optional)
• One LAN port (optional)
• Audio jacks for microphone, line-in and line-out
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