Chapter 1 17
North Bridge Chipset
Southbridge Chipset
Item Specification
Chipset RS880M
Package • Single chip solution in 55nm, 1.1V low power CMOS technology.
• 528-FCBGA package, 21mmx21mm.
Features • CPU HyperTransport™ Interface
• Caspian-series processors.
• ATI HyperMemory
• PCI ExpressR Interface
• A-Link Express II Interface
• Northbridge-Southbridge messaging functionalities
• 2D Acceleration
• 3D Acceleration
• Motion Video Acceleration
• Multiple Display
• System Clocks
• PC Design Guide Compliance
Item Feature
Chipset SB820M
Package SB820M 23 mm x 23 mm x 0.8 mm Pitch 605-FCBGA
Features • Processor Interface
• A-Link Express II interface to Northbridges
• PCI ExpressR Controller
• PCI Host Bus Controller
• USB Controllers
• Supports port disable with individual control
• SMBus Controller
• Interrupt Controller
• DMA Controller
• LPC host bus Controller
• SATA Controller
• IDE emulation mode
• AMD RAID Support
• AHCI Support
• High Definition Audio
• Supports up to 4 codecs
• Gigabit Ethernet Media Access
• Controller (GbE MAC)
•Timers
• Real Time Clock (RTC)
• Power Management
• Consumer IR
• Hardware Monitoring
• Integrated Clock Function