AMD-766AC AMD [Advanced Micro Devices], AMD-766AC Datasheet - Page 5

• Manufacturer Part Number: AMD-766AC
• Description: Peripheral Bus Controller
• Manufacturer: AMD [Advanced Micro Devices]

23167B – March 2001
1
The AMD-766 peripheral bus controller
Southbridge component of personal computer chipsets. The AMD-766 peripheral bus controller (the IC) connects to
a host memory controller through the PCI bus.
1.1
The IC is intended to fit into the traditional Southbridge position on PC-compatible platforms.
PCI interface (PCI specification revision 2.2
compliant).
LPC bus to connect peripherals such as super
IO and BIOS.
Partial ISA bus.
Enhanced IDE controller.
OHCI-based USB host controller with support
for four ports.
Serial IRQ protocol.
ACPI-compliant power management logic.
Overview
Features
8 bits wide.
Support for Flash BIOS.
Support for two dual-drive ports.
PIO modes 0-4.
Multi-word DMA.
UDMA modes up to ATA-100.
Programmable C2, C3, power-on-
suspend, suspend to RAM, suspend to
disk, and soft off states.
Throttling.
Hardware traps.
System inactivity timer.
USB ports
IDE ports
PCI bus
Super I/O
TM
Memory
System
is an integrated circuit (IC), developed by AMD, to be the system
LPC bus
Preliminary Information
Peripheral
Controller
Controller
Memory
Bus
32 general-purpose IO (GPIO) pins (some are
multiplexed with other hard-wired functions).
Privacy/security logic (ROM access control).
Legacy logic.
IOAPIC controller.
Real-time clock.
SMBus controller with one SMBus port.
272-pin BGA package.
3.3-volt core and output drivers; 5-volt
tolerant input buffers.
ISA bus
AMD-766
Programmable interrupt controller.
Programmable interval timer.
DMA controller (for LPC bus).
Legacy ports.
256 bytes of CMOS RAM.
Battery-powered.
ACPI-compliant extensions.
BIOS
ROM
Host
TM
Peripheral Bus Controller Data Sheet
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