VSC8501-03 10/100/1000BASE-T PHY with Synchronous Ethernet and RGMII/GMII/MII MAC Interface OVERVIEW The VSC8501-03 device is designed for space-constrained 10/100/1000BASE-T applications. It features integrated, line-side termination to conserve board space, to lower EMI, and to improve system performance. Additionally, inte- grated RGMII timing compensation eliminates the need for on-board delay lines. The VSC8501-03 device includes Microsemis EcoEthernet v2.0 technology that supports IEEE 802.3az Energy Effi- cient Ethernet (EEE) and power saving features to reduce power based on link state and cable reach. The device opti- mizes power consumption in all link operating speeds and features Wake-on-LAN (WOL) power management using magic packets. The VSC8501-03 device also includes fast link failure indication for high availability networks. Fast link failure indication identifies the onset of a link failure in less than 1 ms typical to go beyond the IEEE 802.3 standard requirement of 750 ms 10 ms (link master). Synchronous Ethernet and Ring Resiliency are supported. The VSC8501-03 device includes recovered clock output for Synchronous Ethernet applications. Programmable clock squelch control is included to inhibit undesirable clocks from propagating and to help prevent timing loops. Ring Resiliency allows a PHY port to switch between master and slave timing references with no link drop in 1000BASE-T mode. The following illustration shows a high-level, general view of a typical VSC8501-03 application. Copper Transceiver Application Diagram 3.3V 10/100/1000BASE-T RGMII/GMII/MII VSC8501 RJ-45 MAC, Switching ASIC, or Single Port PHY and Magnetics Network Processor Management I/F (MDC/MDIO) Key Features This section lists the main features and benefits of the VSC8501-03 device. SUPERIOR PHY AND INTERFACE TECHNOLOGY Integrated 10/100/1000BASE-T Ethernet copper transceiver (IEEE 802.3ab compliant) with VeriPHY cable diag- nostics Patented line driver with low EMI voltage mode architecture and integrated line-side termination resistors Wake-on-LAN using magic packets HP Auto-MDIX and manual MDI/MDIX support Jumbo frame support up to 16 kilobytes with programmable synchronization FIFOs SYNCHRONOUS ETHERNET SUPPORT Recovered clock output with programmable clock squelch control and fast link failure indication (<1 ms typical) for ITU-T G.8261/Y.1361 compliant Synchronous Ethernet (SyncE) applications 2022 Microchip Technology Inc. and its subsidiaries DS60001741B-page 1JTAG TMS JTAG TRST JTAG CLK JTAG DO JTAG DI VSC8501-03 1000BASE-T Ring Resiliency feature to switch between master and slave timing without dropping link Clock output squelch to inhibit clocks during auto-negotiation and no link status BEST IN CLASS POWER CONSUMPTION EcoEthernet v2.0 green energy efficiency with ActiPHY, PerfectReach, and IEEE 802.3az Energy Efficient Ethernet (EEE) Fully optimized power consumption for all link speeds Clause 45 registers to support Energy Efficient Ethernet and IEEE 802.3bf KEY SPECIFICATIONS Compliant with IEEE 802.3 (10BASE-T, 100BASE-TX, and 1000BASE-T) specifications Supports GMII Supports RGMII version 1.3 and 2.5V and 3.3V CMOS for RGMII version 2.0 Supports IEEE 1149.1 JTAG boundary scan Devices support operating temperatures of 40 C ambient to 125 C junction or 0 C ambient to 125 C junction Optionally reports if a link partner is requesting inline Power over Ethernet (PoE or PoE+) Available in 12 mm 12 mm, 135-pin plastic multi-row QFN package Block Diagram The following illustration shows the primary functional blocks of the VSC8501-03 device. Block Diagram P0 D0P P0 D0N MDI GTX CLK P0 D1P Twisted TX CLK P0 D1N TXD n 7:0 P0 D2P Pair TX ER P0 D2N Interface TX EN n/TX CTL P0 D3P RGMII/GMII/MII 10/100/ 10/100/ CRS P0 D3N COL MAC Interface 1000BASE-T PCS 1000BASE-T PMA RX CLK RXD n 7:0 RX DV n/RX CTL Sync RCVRDCLK2 RX ER Ethernet CLK SQUELCH IN COMA MODE Management REFCLK NRESET and REFCLK SEL MDC JTAG PLL and Analog Control Interface REF FILT MDIO (MIIM) REF REXT MDINT PHYADD 4:0 LED Interface LED 3:0 DS60001741B-page 2 2022 Microchip Technology Inc. and its subsidiaries