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AT78C5091 PDF даташит

Спецификация AT78C5091 изготовлена ​​​​«ATMEL Corporation» и имеет функцию, называемую «1-CHANNEL SERIAL ATA PHY».

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Номер произв AT78C5091
Описание 1-CHANNEL SERIAL ATA PHY
Производители ATMEL Corporation
логотип ATMEL Corporation логотип 

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AT78C5091 Даташит, Описание, Даташиты
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Features
1.5 Gbps Bi-directional Transceiver
– Compliant with Serial ATA Gen1 Revision 1.0a Specification
Low Power Operation
– 75 mW per Channel Nominal
Key Blocks Include
– Integrated OOB Processor
– K28.5 COMMA Detection
– Digital Clock and Data Recovery (CDR) with Digital Equalization
– Spread Spectrum Clocking
– Optional 8B/10B Encoder and Decoder
Parallel I/O
– Synchronous 8-bit/10-bit Parallel Interface @ 150 MHz
Serial I/0
– Programmable Pre-emphasis
– Support for Spread Spectrum Clocking
– Integrated 100Matched Differential Termination
– AC and DC Coupling Support
Test Features
– Far-end and Near-end Loopback Support
– At Speed BIST
Overview
The AT78C5091 is a 1-channel SATA PHY supporting Gen 1 speeds of 1.5 Gbps. The
IP has been designed based on the requirements stated in the Serial ATA Standard,
Rev 1.0a, Jan 2003.
On the transmit path, parallel data is registered, passed through a transmit FIFO to
compensate for phase differences between the link and PHY clocks, 8B/10B encoded
and then passed out via a high speed serializer using a spread spectrum clock. Built-
in flexibility permits bypassing the encoding block in addition to optionally disabling the
spread spectrum clocking. The user can control the transmit buffer output swing and
pre-emphasis levels via direct input signals.
On the receive path, the AT78C5091 performs the serial-to-parallel conversion, using
a high bandwidth clock and data recovery (CDR) block. The recovered data is then
passed through a comma alignment block and an optional 8B/10B decode block
before being passed to the phyCtrl layer via a parallel interface. This interface is syn-
chronous to the recovered clock.
The PHY core has an out of band (OOB) processor. As specified by the Serial ATA
standard, three out of band (OOB) signals are used/detected by the PHY, namely
COMRESET, COMINIT, and COMWAKE. Each of these signals are indicated by a
number of bursts of four ALIGN primitives followed by defined idle periods during
which the differential voltage on the serial line is null. OOB signals are observed by
detecting the temporal spacing between adjacent bursts of activity.
Test functions including BIST, scan, parallel and serial loopback modes are configured
and controlled by the use of direct input signals. Similarly, error/status bits are indi-
cated through direct output signals such as bistErr.
1-channel
Serial ATA PHY
AT78C5091
Summary
3558AS–NETST–5/05
Note: This is a summary document. A complete document
is available under NDA. For more information, please con-
tact your local Atmel sales office.









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AT78C5091 Даташит, Описание, Даташиты
Block Diagram
t[7:0]
tBC
cD
tBIMSB
syncMode
txClk
bist
bistErr
enDec
lBEn[2:0]
pOR, phyReset
rxRefMode
frcPhyRdy
cfgHostMode
gotCIOrR
gotComWake
phyRdy
scanClk,scanEn
scanResetL
scanMode
scanIn1,2
scanOut1,2
vizGroup[15:0]
rDat2Link[10:0]
phyRClk
phyIntErr
Tx FIFO
8B/10B
Encode
Serializer
BIST &
Test
Pattern
Generator
Control Block
OOB Processor
High Speed
PLLs
8B/10B
Decode
Digital
CDR
Analog
Bias
enCommaDet
txPreEmCtrl[2:0]
txP
txM
txSSCMode[2:0]
rxSCCMode
refClk
dual, rate
pllFilt
pllBGap
iDDQEn
debugEnL
debugSel[3:0]
debugClk
anaViz
txAmpCtrl[3:0]
resRef
VSSRESREF
rxP
rxM
2 AT78C5090
3558AS–NETST–5/05









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AT78C5091 Даташит, Описание, Даташиты
Atmel Corporation
2325 Orchard Parkway
San Jose, CA 95131, USA
Tel: 1(408) 441-0311
Fax: 1(408) 487-2600
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Literature Requests
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Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any
intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI-
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3558AS–NETST–5/05










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