VSC8488 and VSC8484
Multichannel 10 Gbps XAUI to Serial Transceivers with EDC
Microsemi's multichannel 10 GbE transceivers capture the highest port
density at the lowest cost.
Microsemi’s dual channel and quad channel XAUI-to-serial transceivers,
VSC8488 and VSC8484, deliver minimum cost per channel with
maximum port densities at the lowest power. The devices achieve
an excellent 1 W per channel power dissipation while supporting the
increased port densities required for next-generation 10 Gbps platforms.
The VSC8488 and VSC8484 integrate Microsemi's world-class
electronic dispersion compensation (EDC) performance across multiple
data rates: 9.95 Gbps WAN, 10.3 Gbps Ethernet (GbE), and 10.5 Gbps
Fibre Channel. The devices also meet the SFP+ SR/LR/LRM host
requirements in accordance with the SFF-8431 and IEEE 802.3aq
specifications.
The EDC capabilities are optimized by the VScope™ input signal
monitoring integrated circuit, which delivers more accurate, in-line views
of the post-equalization waveform.
The VSC8488 and VSC8484 compensate for optical impairments
in SFP+ LRM applications, along with degradations of the PCB,
while providing wide system margin for SR and LR applications. The
transmit path incorporates a multi-tap output driver to provide the
flexibility required to meet the demanding 10GBASE-KR (IEEE 802.3ap)
standard.
A complete suite of BIST functionality includes line and client loopbacks
along with pattern generation and error detection. Highly flexible
clocking options support either LAN or WAN operation, along with
seamless Synchronous Ethernet. Both devices include selectable
lane ordering; the VSC8484 includes failover switching capability for
protection routing.
The VSC8488 device supports three serial interface configurations:
MDIO, two-wire serial slave, and two-wire serial master. This highly
flexible communication scheme, along with a minimum of 12
programmable GPIO pins, allows for independent control of the
VSC8488 and VSC8484 channels while providing access to a wide
range of device monitors and XFP/SFP+ module management.
10 GbE Line Card or NIC
XAUI
Interface
4
VSC8488
4
Serial
Interface
Module
Module
10 GbE
Highlights
• Minimum cost per channel
Applications
• Multiple-port XAUI to SFI SFP+ line cards
or NICs
• 10GBASE-KR-compliant backplane
transceivers
• Synchronous Ethernet systems
• 10 GbE switch cards, router cards, and
NICs
Switch Module
Serial
Interface
VSC8488
10GBASE-KR
Backplane
XAUI
Interface
Dual
10 GbE
MAC/NIC
4
XAUI
Switch
Microsemi makes no warranty, representation, or guarantee regarding the information contained herein or the suitability of its products and services for any particular purpose, nor does Microsemi assume any liability
whatsoever arising out of the application or use of any product or circuit. The products sold hereunder and any other products sold by Microsemi have been subject to limited testing and should not be used in conjunction
with mission-critical equipment or applications. Any performance specifications are believed to be reliable but are not verified, and Buyer must conduct and complete all performance and other testing of the products, alone
and together with, or installed in, any end-products. Buyer shall not rely on any data and performance specifications or parameters provided by Microsemi. It is the Buyer’s responsibility to independently determine suitability
of any products and to test and verify the same. The information provided by Microsemi hereunder is provided “as is, where is” and with all faults, and the entire risk associated with such information is entirely with the Buyer.
Microsemi does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other IP rights, whether with regard to such information itself or anything described by such information. Information provided in
this document is proprietary to Microsemi, and Microsemi reserves the right to make any changes to the information in this document or to any products and services at any time without notice.
VSC8488 and VSC8484
Multichannel 10 Gbps XAUI to Serial Transceivers with EDC
Wide Range of Support
• Compliant with IEEE 802.3aq, IEEE 802.3ae, and SFF-8431
(SFI) electrical specifications
• 9.95 Gbps WAN, 10.3 GbE, and 10.5 Gbps Fibre Channel op-
eration, as well as 1.25 Gbps and 3.125 Gbps legacy support
• Supports SFP+ and XFP SR/LR/LRM applications
• Support for 10GBASE-KR (IEEE 802.3ap) for 10 Gbps
backplanes, including 1 Gbps and 10 Gbps autonegotiation
• Adaptive FFE/DFE receiver with programmable, multi-tap
transmit pre-emphasis
Flexibility
• Failover switching and lane ordering
• VScope for remote signal monitoring, optimal data eye
opening, and lower BER
• Host-side and line-side loopbacks with BIST functions
• I/O programmability for lane swap, invert, amplitude, slew, pre-
emphasis, and equalization
• Flexible clocking options enable Layer 1 support for
Synchronous Ethernet
• Low power mode
• MDIO, two-wire serial slave, and two-wire serial master
interfaces
• Passive copper cable support for minimum transmission cost
Key Specifications
• 1 W typical for each bidirectional channel
• 1.8 V and 1.2 V core power supplies (1.2 V to 3.3 VTTL supply)
VSC8488
PHY-XS
XRX[0]0
XRX[0]1
XRX[0]2
CRU
DEMUX
FIFO
PCS
Expander
3G/1G
BASE-KR
Autoneg
Encode
FEC
Gear
Box
WIS
FIFO
WIS
Frame
Insert
Cross-
point
MUX
PMA
D Q
TXOUT[0]
Decode
10B/8B
W R
XAUI
Channel 0
XRX[0]3
CMU
XFP_REF
Training
CRU
MUX
SFI/XFI
SYNC-E
FIFO
WIS
Frame
Extract
Micro-
controller
DMX
XTX[0]0
XTX[0]1
XTX[0]2
XTX[0]3
Encode
8B/10B
W R
FIFO
BASE-KR
Gear
Autoneg
Box
Decode Training
FEC
Compressor
3G/1G
RAM
EDC/
CRU
RXIN[0]
XAUI
Channel 1
(same as 0)
PHY-XS
PCS
WIS
PMA
Microsemi Corporate Headquarters
One Enterprise, Aliso Viejo, CA 92656 USA
Within the USA: +1 (800) 713-4113
Outside the USA: +1 (949) 380-6100
Sales: +1 (949) 380-6136
Fax: +1 (949) 215-4996
email: sales.support@microsemi.com
www.microsemi.com
Microsemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor and system solutions for com-
munications, defense and security, aerospace, and industrial markets. Products include high-performance and radiation-
hardened analog mixed-signal integrated circuits, FPGAs, SoCs, and ASICs; power management products; timing and
synchronization devices and precise time solutions; voice processing devices; RF solutions; discrete components; enter-
prise storage and communications solutions, security technologies, and scalable anti-tamper products; Ethernet solutions;
Power-over-Ethernet ICs and midspans; custom design capabilities and services. Microsemi is headquartered in Aliso Viejo,
California, and has approximately 4,800 employees worldwide. Learn more at www.microsemi.com.
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and service marks are the property of their respective owners.
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