VSC8490
Dual Channel WAN/LAN/Backplane RXAUI/XAUI to SFP+/KR 10 GbE SerDes PHY with VeriTime™ and MACsec
Microsemi's dual 10G/1G SerDes PHY provides MACsec, IEEE 1588v2,
and hardware-based KR support for timing-critical applications,
including all industry-standard protocol encapsulations.
The full dual-channel VSC8490 device offers a seamless integration
between IEEE 1588v2 and the MACsec engine with no loss of precision.
VeriTime™ is Microsemi's patent-pending timing technology
that delivers the industry’s most accurate IEEE 1588v2 timing
implementation. IEEE 1588v2 timing integrated in the PHY is the
quickest, lowest cost method of implementing the timing accuracy that
is critical to maintaining existing timing-critical capabilities during the
migration from TDM to packet-based architectures.
The VSC8490 device supports 1-step and 2-step PTP frames for
ordinary clock, boundary clock, and transparent clock applications,
along with complete Y.1731 OAM performance monitoring capabilities.
MACsec (IEEE 802.1AE) defines a set of protocols to meet the security
requirements for protecting data traversing Ethernet LANs, such as
input classification, frame encryption/decryption, and performance and
latency monitoring.
The VSC8490 device meets the SFP+ SR/LR/ER/ZR/220MMF host
requirements in accordance with the SFF-8431 specifications. It also
compensates for optical impairments in SFP+ applications, along with
degradations of the PCB.
The VSC8490 device provides full KR support, including KR state
machine, for autonegotiation and link optimization. The transmit
path incorporates a multitap output driver to provide flexibility to
meet the demanding 10GBASE-KR (IEEE 802.3ap) Tx output launch
requirements.
A complete suite of BIST functionality includes line and client loopbacks
along with pattern generation and error detection. Highly flexible
clocking options support LAN and WAN operation using single
156.25 MHz reference clock rate inputs for seamless Synchronous
Ethernet support. The VSC8490 device includes a failover switching
capability for protection routing, along with selectable lane ordering.
Highlights
• IEEE 1588v2 compliant
• 128/256-bit MACsec support
• RXAUI/XAUI support
• SFP+ I/O with KR support
• 1 GbE support
Applications
• Multiple-port RXAUI/XAUI to SFI/ SFP+ line
cards or NICs
• 10GBASE-KR compliant backplane
transceivers
• Carrier Ethernet networks requiring
IEEE 1588v2 timing
• Secure data center-to-data center
interconnects
• 10 GbE switch cards, router cards, and
NICs
10 GbE
Switch Module
10 GbE Line Card or NIC
RXAUI/XAUI
Dual
10 GbE
MAC/NIC
2/4
2/4
VSC8490
2 × 10G
2 × 1G
Module
Module
VSC8490
2 × 10G/
2 × 1G
10GBASE-KR
Backplane
2/4
2/4
RXAUI/
XAUI
RXAUI/
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.
VSC8490
Dual Channel WAN/LAN/Backplane RXAUI/XAUI to SFP+/KR 10 GbE SerDes PHY with VeriTime™ and MACsec
Range of Support
• IEEE 1588v2/Y.1731 OAM precision timing support to within
4 ns accuracy at 1.25 Gbps and 10.3 Gbps
• Compliant to IEEE 802.1AE specifications for 128/256-bit
MACsec support
• Compliant to IEEE 802.3ae and SFF-8431 electrical (SFI)
specifications
• 9.95 Gbps WAN and 10.3 Gbps LAN operation, as well as
1.25 Gbps Ethernet support
• Supports all standard SFP+ applications
• Support for 10GBASE-KR (IEEE 802.3ap) for 10G backplanes,
including 1.25 Gbps and 10.3 Gbps auto-negotiation
• Adaptive equalization receiver and programmable, multitap
transmitter pre-emphasis
• Synchronous Ethernet support
• MDIO/SPI and two-wire serial slave management interfaces
Flexibility
Failover switching and lane ordering
VScope input signal monitoring integrated circuit
Host-side and line-side loopbacks with BIST functions
I/O programmability for lane swap, invert, amplitude, slew, pre-
emphasis, and equalization
• Optional forward error correction (FEC)
• Flexible clocking options enable Layer 1 support for
Synchronous Ethernet
• Passive copper cable support for minimum transmission cost
•
•
•
•
Related Products
Visit www.microsemi.com for information about these related
products:
• VSC8487-15
• VSC8488-15
• VSC8489
• VSC8491
• VSC8572/VSC8574
• VSC8584
Key Specifications
• 1.25 W typical for each bidirectional channel
• 1.2 V and 1.0 V core power supplies (2.5 V TTL supply)
PLL
Clocking Network for Timing and Retiming (including SyncE support)
PLL
RXAUI
XAUI
1 GbE
PCS
MUX
FIFO
SFP+
KR
1GbE
Host/Client
2× 2× 6.25 G
2× 4× 3.125 G
2× 4× 3.125 G
Line
SERDES
XGXS
PCS
FIFO
WIS
SERDES
2× 10 G
2× 1 G
RXAUI
XAUI
1 GbE
SPI/MDIO/
Two-Wire Serial
MUX
PCS
SFP+
KR
1GbE
SPI Slave
MDIO Slave
Two-Wire Serial Slave
Configuration and Status Registers
Two-Wire Serial Master
Two-Wire Serial
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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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