Specifications
©
2008 Advanced Micro Devices Inc.
Introduction
AMD SB600 BIOS Developer’s Guide (Public Version) Proprietary
Page 7
1 Introduction
1.1 About This Manual
This manual provides guidelines for BIOS developers working with the AMD SB600. It
describes the BIOS and software modifications required to fully support the device.
Note: To help the reader to readily identify changes/updates in this document, changes/updates
over the previous revision are highlighted in red. Refer to Appendix: Revision History at the end
of this document for a detailed revision history.
1.2 Overview
The SB600 is an I/O Communication Processor designed to work with AMD’s ATI Radeon™
and Mobility Radeon™ Integrated Graphics Processors (IGPs). The functions and capabilities of
the SB600 are as follows:
CPU Interface
Supports both Single and Dual core AMD
CPUs
Desktop: AMD Athlon
™ 64, Athlon 64
FX, Athlon 64 X2, Sempron
™,
Opteron
™, dual-core Opteron
Mobile: Athlon XP-M, Mobile Athlon
64, Turion 64, Mobile Sempron
PCI Host Bus Controller
Supports PCI Rev. 2.3 specification
Supports PCI bus at 33MHz
Supports up to 6 bus master devices
Supports 40-bit addressing
Supports interrupt steering for plug-n-play
devices
Supports concurrent PCI operations
Supports hiding of PCI devices by
BIOS/hardware
Supports spread spectrum on PCI clocks
USB Controllers
5 OHCI and 1 EHCI Host controllers to
support 10 USB ports
All 10 ports are USB 1.1 (“Low Speed”,
“Full Speed”) and 2.0 (“High Speed”)
compatible
Supports ACPI S1~S5
Supports legacy keyboard/mouse
Supports USB debug port
Supports port disable 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