參數(shù)資料
型號(hào)： QR0001
文件頁(yè)數(shù)： 1/40頁(yè)
文件大?。?/td> 440K
代理商： QR0001
TL/F/11928
Q
PRELIMINARY
October 1994
QR0001
QuickRing
TM
Data Stream Controller
General Description
QuickRing is a point-to-point data transfer architecture de-
signed to facilitate high speed data streams. The QuickRing
architecture can be applied both inside the chassis as well
as outside the chassis environments to increase data
throughput. Each QR0001 QuickRing Controller node in the
ring is capable of streaming up to 231 MSamples/s per sig-
nal line simultaneously, including protocol overhead. This
device is intended for use in applications that handle high-
bandwidth data streams associated with graphics, uncom-
pressed video, disk arrays, high-speed local area networks,
multiprocessor systems, and to interconnect peripherals
over a few meters of cable. The QR0001 QuickRing Con-
troller can be used to augment the performance of tradition-
al backplane buses in personal computers, workstations,
and high-end systems. The QR0001 is useful for routing
high-bandwidth streams in systems that are larger or topo-
logically more complex than bus-based systems.
Features
Y
160-pin PQFP package
Y
16 node single ring capability
Y
Peak theoretical rate over 1 GByte/sec for 16 node
ring
Y
Support for Multi-Ring topologies
Y
Error detection detects 1- and 2-bit errors
RING INTERFACE
Y
Precision PLL captures data at 231 MSamples/s max
Y
33 MHz maximum ring clock frequency
Y
Low Voltage Differential Signaling (LVDS) ring interface
(IEEE P1596.3)
CLIENT INTERFACE
Y
132 MBytes/s data transfer rate at both Tx and Rx
ports
Y
32-bit transmit and receive data ports
Y
Readable internal diagnostic register
Y
TTL signal interface
Block Diagram
TL/F/11928–1
QuickRing
TM
is a trademark of Apple Computer, Incorporated.
C
1995 National Semiconductor Corporation
RRD-B30M75/Printed in U. S. A.
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