參數(shù)資料
型號： XRS10L120IV
廠商： EXAR CORP
元件分類： 數(shù)字信號處理外設
英文描述： SERIAL ATA II: 1:2 PORT MULTIPLIER
中文描述： DSP-MULTIPLIER, PQFP100
封裝： 14 X 14 MM, 1.40 MM HEIGHT, LQFP-100
文件頁數(shù)： 1/52頁
文件大?。?/td> 399K
代理商： XRS10L120IV
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
PRELIMINARY
XRS10L120
SERIAL ATA II: 1:2 PORT MULTIPLIER
DECEMBER 2006
REV. P1.0.1
GENERAL DESCRIPTION
The EXAR XRS10L120 is a Serial ATA port multiplier
designed for next generation enterprise class disk
array systems that use SATA mid-planes. The device
is targeted at low cost storage applications.
This function is used when one active host has to
communicate with multiple SATA drives. The
XRS10L120 supports up to 2 SATA drives and utilizes
the full bandwidth of the host connection.
The upstream ports of XRS10L120 can also be
attached to a port selector (XRS10L210) or a Serial
ATA Switch to provide redundancy in a more complex
topology.
The XRS10L120 includes enhanced features such as
staggered HDD spin-up, power management control,
hot plug capability and support for legacy software.
The XRS10L120 acts as a retimer, maintaining
independent signaling domains between the drives
themselves and the external interconnect.
The high-speed serial input features selectable
equalization adjustment and the high-speed serial
output
features
selectable
compensate for ISI (Inter-Symbol Interference) and
increase maximum cable distances.
pre-emphasis
to
XRS10L120 meets tight jitter budgets in SATA
applications. Exar's serial I/O technology enables
reliable data transmission over 1 meter or more of
FR-4 and 15 meters or more of unequalized copper
cable.
Host and drive port speeds can be mixed and
matched, based upon inherent data rate negotiation
present in the SATA II specifications.
The MDIO bus allows simple configuration of the
device.
To summarize, the XRT10L120 port multiplier device
allows the system designer to increase the number of
serial ATA connections in an enclosure that does not
have a sufficient number of serial ATA connections for
all of the drives in the enclosure.
OVERVIEW OF PORT MULTIPLIER LOGIC
XRS10L120 port multiplier is a multiplexer where one
active host connection is multiplexed to multiple
device connections. The XRS10L120 is an extensible
design that can support up to 2 device connections
and utilizes the full bandwidth of the host connection.
XRS10L120 uses four bits, known as the PM Port
field in all Serial ATA frame types, to route frames
between the selected host and the appropriate
device. PM ports 0 and 1 are valid device ports within
the 2-output XRS10L120, while PM port 15 is
designated for communication between the host and
the
XRS10L120
itself.
transactions, the PM Port field is designated by the
host in order to specify which device the frame is
intended for. For device-to-host transactions, the
XRS10L120 fills in the PM Port field with the port
address of the device that is transmitting the frame.
For
host-to-device
STANDARDS COMPLIANCE
The XRS10L120 is compliant with the following
industry specifications:
Serial ATA, Revision 1.0a
Serial ATA II: Extensions to Serial ATA 1.0a,
Revision 1.2
Serial ATA II PHY Electrical Specifications,
Revision 1.0
Serial ATA II: Port Multiplier, Revision 1.2
APPLICATIONS
Serial ATA Enclosures
Other Serial ATA link replicator applications
Buffers for externally connected links
High density storage boxes
RAID Subsystems
FEATURES
G
ENERAL
F
EATURES
Three independent 3/1.5G SATA ports.
Supports 3/1.5G rate detection/speed negotiation.
Supports power down modes - Active, partial,
slumber and power down.
P
ORT
M
ULTIPLIER
L
OGIC
F
EATURES
Low latency architecture.
Supports OOB signaling for SATA applications.
Internal OOB detectors for COMSAS, COMRESET/
COMINIT and COMWAKE.
T
EST
AND
C
ONTROL
F
EATURES
Supports MDIO Bus.
Outputs for various failure modes.
Built-In self test mode through the MDIO bus.
Supports various loopback modes.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRS10L120IV-F 功能描述:編碼器、解碼器、復用器和解復用器 RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
XRS10L140 制造商:EXAR 制造商全稱:EXAR 功能描述:SERIAL ATA II: PORT MULTIPLIER
XRS10L140ES 功能描述:計數(shù)器 IC RoHS:否 制造商:NXP Semiconductors 計數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計數(shù)法: 計數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel
XRS10L140IV 制造商:EXAR 制造商全稱:EXAR 功能描述:SERIAL ATA II: PORT MULTIPLIER
XRS10L140IV-F 功能描述:計數(shù)器 IC RoHS:否 制造商:NXP Semiconductors 計數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計數(shù)法: 計數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel
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