VSC8244 Data Sheet Quad 10/100/1000BASE-T PHY with RGMII and RTBI Interfaces 1 General Description Ideally suited for high port density Gigabit Ethernet switches Each of the four independent triple-speed transceivers and routers, or multi-port Network Interface Cards (NICs), features pin-efficient RGMII and RTBI compliant MAC Microsemi s VSC8244 integrates four low-power, triple speed interfaces. On-chip RGMII/RTBI series termination resistors (10BASE-T, 100BASE-TX, and 1000BASE-T) Ethernet simplify board design challenges by improving signal integrity transceivers in thermally-enhanced, 260-pin plastic Ball Grid and completely eliminating dozens of external series Array (BGA). termination resistors on the receive side of the MAC interface. In addition, the VSC8244 integrates, for the first The VSC8244 physical layerPH IC leverages Microsemis time in the industry, all copper media side line termination proprietary 4th generation DSP Technology. Microsemi s resistors. highly optimized DSP architecture yields industry leading suite has the ability to identify the cable length performance at less than 640mW per port, supporting The VeriPHY 1000BASE-T with respect to all worst case impairments and operating conditions and to isolate common faults that (NEXT, FEXT, Echo, and system noise sources). can occur on Cat5 twisted pair cabling. 2 System Diagrams RGMII, RTBI 1.2 v 3.3 v 10/100/1000 Mbps SimpliPHY d RJ-45 Ethernet MAC Magnetics 10/100/1000 Mbps SimpliPHY d RJ-45 VSC8244 Ethernet MAC Magnetics Quad 10/100/1000BASE-T 10/100/1000 Mbps SimpliPHY d Transceiver RJ-45 Ethernet MAC Magnetics 10/100/1000 Mbps SimpliPHY d RJ-45 Ethernet MAC Magnetics MDC, MDIO Serial Management Optional MDINT n I/F I/F EEPROM Figure 1. VSC8244 System Diagram 1 of 3 VMDS-10108 Revision 4.2 Microsemi Corporation One Enterprise, Aliso Viejo, CA 92656 USA sales.support microsemi.com www.microsemi.com February 2019VSC8244 Data Sheet 3 Features Benefits Quad, low power, 10/100/1000BASE-T in a Catalyzes market for low-cost & high density LAN, WAN, 19mm HS-BGA package SAN, & MAN switches Lowest power consumption in the industry at less than Eliminates heatsinks and fans for Gigabit to the desktop 640mW/port (1000BASE-T mode) LAN switches Supports PICMG 2.16 and 3.0 Ethernet backplanes at Lowest power mode reduces supply costs less than 500 mW/port Removes 12 passive components per PHY*, reducing PCB area & cost by 50% Patented, low EMI line driver with integrated line side termination resistors Saves up to 50% on magnetic module cost with SimpliPHYd magnetics Enables magnetic-less PICMG backplane designs Supports RGMII v1.3 (2.5V & 3.3V) & v2.0 (1.5V HSTL) Compatible with a wide variety of parallel I/F switch ICs User-programmable RGMII timing compensation Simplifies PCB layout eliminates PCB trombones Compliant with IEEE 802.3 (10BASE-T, 100BASE-TX, Ensures seamless deployment throughout copper 1000BASE-T) specifications networks with industrys highest tolerance to noise and substandard cable plants >10kB jumbo frame support with programmable Provides for maximum jumbo frame sizes in custom synchronization FIFOs SAN and LAN systems Five Direct drive LEDs per port with on-chip filtering or Eliminates external components and EMI issues serial LED interface option Three user configuration options: 1) optional serial Offers design engineer a solution to fit any unmanaged EEPROM, 2) hardware configuration pins, or 3) Serial or managed system requirement Management Interface (SMI) Full suite of BIST, near-end, and far-end loopback Simplifies comprehensive in-system test to ensure modes highest product quality Identifies cable length and operating conditions to VeriPHY cable diagnostics isolate common faults that can occur on Cat5 twisted pair cabling Automatic detection and correction of cable pair swaps, Compatible with 1st generation 1000BASE-T PHYs. pair skew and pair polarity, along with HP Auto MDI/ Supports Auto MDI/MDI-X even when Autonegotiation is MDI-X crossover function disabled Manufactured in advanced 0.13 m, 3.3V/1.2V digital Most cost effective technology eliminates more CMOS process expensive analog process variants * or, 576 components for a 48-port switch 4 Applications High Port Density 10/100/1000BASE-T Switches Gigabit Ethernet-based SAN, NAS, and MAN Systems Workgroup LAN Switches & Routers High Performance Workstations & Multi-Port Server NICs Backplane Applications such as PICMG 2.16, 3.0 2 of 3 VMDS-10108 Revision 4.2 3 February 2019