Overview

The AMD-766 peripheral bus controllerTM is an integrated circuit (IC), developed by AMD, to be the system Southbridge component of personal computer chipsets. The AMD-766 peripheral bus controller (the IC) connects to a host memory controller through the PCI bus.

Features

• PCI interface (PCI specification revision 2.2 compliant).

• LPC bus to connect peripherals such as super IO and BIOS.

• Partial ISA bus.

• 8 bits wide.

• Support for Flash BIOS.

• Enhanced IDE controller.

• Support for two dual-drive ports.

• PIO modes 0-4.

• Multi-word DMA.

• UDMA modes up to ATA-100.

• OHCI-based USB host controller with support for four ports.

• Serial IRQ protocol.

• ACPI-compliant power management logic.

• Programmable C2, C3, power-on-suspend, suspend to RAM, suspend to disk, and soft off states.

• Throttling.

• Hardware traps.

• System inactivity timer.

• 32 general-purpose IO (GPIO) pins (some are multiplexed with other hard-wired functions).

• Privacy/security logic (ROM access control).

• Legacy logic.

• Programmable interrupt controller.

• Programmable interval timer.

• DMA controller (for LPC bus).

• Legacy ports.

• IOAPIC controller.

• Real-time clock.

• 256 bytes of CMOS RAM.

• Battery-powered.

• ACPI-compliant extensions.

• SMBus controller with one SMBus port.

• 272-pin BGA package.

• 3.3-volt core and output drivers; 5-volt tolerant input buffers.