AMD-762 Datasheet, PDF (13/122 Pages) Advanced Micro Devices – System Controller

24416C—December 2001
Preliminary Information
AMD-762™ System Controller Data Sheet
1 Features
Chapter 1
The AMD Athlon™ processor powers the next generation in computing
platforms, delivering the ultimate performance for cutting-edge
applications and an unprecedented computing experience.
The AMD-760MPX™ and AMD-760MP™ chipsets are highly
integrated system logic solutions that deliver enhanced
performance for the AMD Athlon™ processor and other
AMD Athlon processor system bus-compatible processors. The
AMD-760MPX chipset consists of the AMD-762™ system
controller in a 949-pin Ceramic Column Grid Array (CCGA)
package and the AMD-768™ peripheral bus controller. The
AMD-760MP chipset consists of the AMD-762 system controller in
a CCGA package and the AMD-766™ peripheral bus controller.
The AMD-762 system controller features the AMD Athlon
system bus, system memory controller, Accelerated Graphics
Port (AGP) controller, and Peripheral Component Interconnect
(PCI) bus controller. Figure 1 on page 5 shows a block diagram
for the AMD-760MPX chipset. Figure 2 on page 6 shows a block
diagram for the AMD-760MP chipset.
The AMD-762 system controller is designed with the following
features:
n Two AMD Athlon processor system buses support the
high-speed, split-transaction AMD Athlon system bus
interface. These buses are designed to operate at
100/200-MHz or 133/266-MHz double-data rate.
n A 66/33-MHz 64/32-bit PCI 2.2-compliant bus interface
supports up to seven bus masters plus the AMD-766
peripheral bus controller at 33 MHz or up to two bus masters
plus the AMD-768 peripheral bus controller at 66 MHz.
n The 66-MHz AGP 2.0-compliant interface supports 1x, 2x,
and 4x data transfer mode.
n High-speed memory—The AMD-762 system controller is
designed to support DDR SDRAM DIMMs, operating at
either 100/200-MHz or 133/266-MHz double-data rate. Note
that the DDR interface speed is always locked to the front-
side bus speed.
Features
1