AMD-762 Datasheet, PDF (16/122 Pages) Advanced Micro Devices – System Controller

Preliminary Information
AMD-762™ System Controller Data Sheet
24416C—December 2001
1.4 AGP Features
The AGP features include the following:
n Bus Features
• Compliance with Accelerated Graphics Port Interface
Specification, Revision 2.0
• Synchronous 66-MHz 1x, 2x, and 4x data-transfer modes
• Multiplexed and demultiplexed transfers
• Up to four pipelined grants
• Support of Sideband Address (SBA) bus
n Request Queue Features
• Separate read-request and write-request queues
• Reordering of high-priority requests over low-priority
requests in queue
• Simultaneous issuing of requests from both the write
queue and read queue
n Graphics Address Remapping Table (GART) Features
• Conventional (two-level) GART scheme
• Eight-entry, fully-associative GART table cache
• Three fully-associative GART directory caches
One 4-entry for PCI
One 8-entry for the processor
One 16-entry for AGP
1.5 Power Management
The power management features include the following:
n Compliance support for both Advanced Configuration and
Power Interface (ACPI) and Microsoft^® PC 99 power
management
n The AMD-762 system controller supports the following
power states:
• ACPI S1 (power on suspend) and S3 (suspend to RAM)
sleep states
• Clock throttling with the processor’s STPCLK#/stop
grant mechanism
4
Features
Chapter 1