CA91L8260B Datasheet, PDF (431/439 Pages) Integrated Device Technology – PowerSpan II™ User Manual

Glossary
431
PMC
PCI Mezzanine Card
A mechanical format for adding PCI based mezzanine cards to a VMEbus card.
Primary PCI Interface
SDMA
Adds extra functionality to the PCI Interface that is designated as the Primary PCI
Interface.The features are associated with the Primary PCI Interface include: CompactPCI
Hot Swap Support, Vital Product Data support and I₂O Shell Interface.
Serial DMA
Used to support the movement of serial data to/from the serial ports of the PowerQUICC II.
Secondary PCI Interface In the Dual PCI PowerSpan II, this interface is the interface that is not designated as the
Primary PCI Interface.
Single PCI PowerSpan II PowerSpan II variant with a single PCI interface.
Slave
Slave (target) is the device which is accessed by the bus master. It is used to refer to the
address accessed by the master on the processor (60x) bus.
Strong ordering
A memory access model that requires exclusive access to an address before making an
update, to prevent another device from using stale data.
System Slot
The slot on a CompactPCI bus segment that provides arbitration, clock distribution, and reset
functions for all boards on the segment
Target
Target (slave) is the device which is accessed by the bus master. It is used to refer to the
address accessed by the master on the PCI bus.
Target image
Target image is a memory range which is mapped between the PCI bus and the processor
(60x) bus.
Weak ordering
A memory access model that allows bus operations to be reordered dynamically. This
improves overall performance and reduces the effect of memory latency on instruction
throughput.
Window of Opportunity
Refers to the clock following the assertion of ARTRY_. The retrying master has to request
the bus on this clock to ensure that it is the next bus owner. This enables it to perform the
transactions required to maintain cache coherency.
WinPath
Wintegra Processor
Integrated Device Technology
www.idt.com
PowerSpan II User Manual
80A1010_MA001_09