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AMD SP5100 Databook
44409 Rev. 1.70 Oct 10
8
Introduction
1 Introduction
AMD’s SP5100 is a Southbridge that integrates key I/O, communications, and other features required in a
state-of-the-art server platform into a single device. It is specifically designed to operate with AMD’s
server Northbridges.
1.1
Features of the SP5100
CPU Interface
Supports AMD Opteron
TM
server class
processors, including:
Socket F processors (“Barcelona,”
Shanghai,” and “Istanbul” series
only)
Socket G34 processors
Socket C32 processors
A-Link Express II interface to AMD
Northbridges
1 / 2 / 4-lane A-Link Express II interface
Dynamic detection of lane configuration
High data transfer bandwidth (up to 2.5 Gb/s
/ Lane)
PCI Host Bus Controller
Supports PCI bus at 33 MHz
PCI Rev. 2.3 specification support
Supports up to 6 bus master devices
Supports 40-bit addressing
Interrupt steering supported for plug-n-play
devices
BIOS / Hardware support to hide PCI device
Spread spectrum support
USB Controllers
5 OHCI and 2 EHCI Host controllers to
supports 12 USB 2.0 ports and 2 dedicated
USB 1.1 ports
ACPI S1 ~ S5 supported
Legacy Keyboard/Mouse support
USB debug port
Port disable supported with individual control
SMBus Controller
SMBus Rev. 2.0 compliant
Support SMBALERT # signal / GPIO
Interrupt Controller
Supports IOAPIC/X-IO APIC mode for 24
channels of interrupts
Supports 8259 legacy mode for 15 interrupts
Supports programmable level/edge
triggering on each channels
Supports serial interrupt on quiet and
continuous modes
DMA Controller
Two cascaded 8237 DMA controllers
Supports PC/PCI DMA
Supports LPC DMA
Supports type F DMA
LPC Host Bus Controller
Supports LPC based super I/O and flash
devices
Two Master/DMA devices supported
Support for TPM version 1.1/1.2 devices
Supports SPI devices
SATA Controller
Supports six SATA ports with transfer rates
up to 3 Gb/s
Complies with SATA 2.5 specification