Datasheet KSZ9893R (Microchip)

KSZ9893R 3-Port Gigabit Ethernet Switch with RGMII/MII/RMII Interface Highlights
• Two Robust Integrated PHY Ports - 1000BASE-T/100BASE-TX/10BASE-T IEEE 802.3 • Non-blocking wire-speed Ethernet switching fabric - Fast Link-up option significantly reduces link-up time • Full-featured forwarding and filtering control, includ- - Auto-negotiation and Auto-MDI/MDI-X support ing Access Control List (ACL) filtering - Energy-Efficient Ethernet (EEE) support with low- • Full VLAN and QoS support power idle mode and clock stoppage • Two ports with integrated 10/100/1000BASE-T PHYs - On-chip termination resistors and internal biasing for • One port with 10/100/1000 Ethernet MAC and differential pairs to reduce power configurable RGMII/MII/RMII interface - LinkMD® cable diagnostic capabilities for determining cable opens, shorts, and length • IEEE 802.1X port-based authentication support • One Configurable External MAC Port • EtherGreen™ power management features, including low power standby and IEEE 802.3az - Reduced Gigabit Media Independent Interface (RGMII) v2.0 • Flexible management interface options: SPI, I2C, - Reduced Media Independent Interface (RMII) v1.2 MIIM, and in-band management via any port with 50MHz reference clock input/output option • Commercial/Industrial temperature range support - Media Independent Interface (MII) in PHY/MAC mode • 64-pin VQFN (8 x 8mm) lead-free package • Advanced Switch Capabilities - IEEE 802.1Q VLAN support for 128 active VLAN
Target Applications
groups and the full range of 4096 VLAN IDs - IEEE 802.1p/Q tag insertion/removal on per port basis • Stand-alone 10/100/1000Mbps Ethernet switches - VLAN ID on per port or VLAN basis • VoIP infrastructure switches - IEEE 802.3x full-duplex flow control and half-duplex • Broadband gateways/firewalls back pressure collision control • Wi-Fi access points - IEEE 802.1X (Port-Based Network Access Control) • Integrated DSL/cable modems - IGMP v1/v2/v3 snooping for multicast packet filtering • Security/surveillance systems - IPv6 multicast listener discovery (MLD) snooping - IPv4/IPv6 QoS support, QoS/CoS packet prioritization • Industrial control/automation switches - 802.1p QoS packet classification with 4 priority queues • Networked measurement and control systems - Programmable rate limiting at ingress/egress ports - Broadcast storm protection
Features
- Four priority queues with dynamic packet mapping for IEEE 802.1p, IPv4 DIFFSERV, IPv6 Traffic Class • Switch Management Capabilities - MAC filtering function to filter or forward unknown uni- - 10/100/1000Mbps Ethernet switch basic functions: cast, multicast and VLAN packets frame buffer management, address look-up table, - Self-address filtering for implementing ring topologies queue management, MIB counters • Comprehensive Configuration Registers Access - Non-blocking store-and-forward switch fabric assures fast packet delivery by utilizing 4096 entry forwarding - High-speed 4-wire SPI (up to 50MHz), I2C interfaces table with 128kByte frame buffer provide access to all internal registers - Jumbo packet support up to 9000 bytes - MII Management (MIIM, MDC/MDIO 2-wire) Interface - Port mirroring/monitoring/sniffing: provides access to all PHY registers ingress and/or egress traffic to any port - In-band management via any of the three ports - MIB counters for fully-compliant statistics gathering - I/O pin strapping facility to set certain register bits from 34 counters per port I/O pins at reset time - Tail tagging mode (one byte added before FCS) sup- - On-the-fly configurable control registers port at host port to inform the processor which ingress • Power Management port receives the packet and its priority - IEEE 802.3az Energy Efficient Ethernet (EEE) - Loopback modes for remote failure diagnostics - Energy detect power-down mode on cable disconnect - Rapid spanning tree protocol (RSTP) support for topol- - Dynamic clock tree control ogy management and ring/linear recovery - Unused ports can be individually powered down - Multiple spanning tree protocol (MSTP) support - Full-chip software power-down - Wake-on-LAN (WoL) standby power mode  2017-2018 Microchip Technology Inc. DS00002420D-page 1 Document Outline 1.0 Preface 1.1 Glossary of Terms TABLE 1-1: General Terms 1.2 Buffer Types TABLE 1-2: Buffer Types 1.3 Register Nomenclature TABLE 1-3: Register Nomenclature 1.4 References 2.0 Introduction 2.1 General Description FIGURE 2-1: Internal Block Diagram 3.0 Pin Descriptions and Configuration 3.1 Pin Assignments FIGURE 3-1: Pin Assignments (Top View) TABLE 3-1: Pin Assignments 3.2 Pin Descriptions TABLE 3-2: Pin Descriptions 3.2.1 Configuration Straps TABLE 3-3: Configuration Strap Descriptions 4.0 Functional Description 4.1 Physical Layer Transceiver (PHY) 4.1.1 1000BASE-T Transceiver 4.1.2 100BASE-TX Transceiver 4.1.3 10BASE-T/Te Transceiver 4.1.4 Auto MDI/MDI-X TABLE 4-1: MDI/MDI-X Pin Definitions 4.1.5 Pair-Swap, Alignment, and Polarity Check 4.1.6 Wave Shaping, Slew-Rate Control, and Partial Response 4.1.7 Auto-Negotiation FIGURE 4-1: Auto-Negotiation and Parallel Operation 4.1.8 LinkMD® Cable Diagnostics 4.1.9 Remote PHY Loopback FIGURE 4-2: Remote PHY Loopback 4.2 LEDs 4.2.1 Single-LED Mode TABLE 4-2: Single-LED Mode Pin Definition 4.2.2 Tri-Color Dual-LED Mode TABLE 4-3: Tri-Color Dual-LED Mode Pin Definition 4.3 Media Access Controller (MAC) 4.3.1 MAC Operation 4.3.2 Inter-Packet Gap (IPG) 4.3.3 Back-Off Algorithm 4.3.4 Late Collision 4.3.5 Legal Packet Size 4.3.6 Flow Control 4.3.7 Half-Duplex Back Pressure 4.3.8 Flow Control and Back Pressure Registers TABLE 4-4: Flow Control and back Pressure Registers 4.3.9 Broadcast Storm Protection 4.3.10 Self-Address Filtering 4.4 Switch 4.4.1 Switching Engine 4.4.2 Address Lookup TABLE 4-5: Address Lookup Table Hashing Options TABLE 4-6: Reserved Multicast Address Table FIGURE 4-3: Packet Forwarding Process Flowchart TABLE 4-7: Lookup Engine Registers 4.4.3 IEEE 802.1Q VLAN TABLE 4-8: VLAN Forwarding TABLE 4-9: Hashed(DA) + FID Lookup in VLAN Mode TABLE 4-10: Hashed(SA) + FID Lookup in VLAN Mode TABLE 4-11: VLAN Registers 4.4.4 Quality-of-Service (QoS) Priority Support FIGURE 4-4: 802.p Priority Field Format 4.4.5 Traffic Conditioning & Policing 4.4.6 Spanning Tree Support TABLE 4-12: Spanning Tree States 4.4.7 Rapid Spanning Tree Support 4.4.8 Multiple Spanning Tree Support 4.4.9 Tail Tagging Mode FIGURE 4-5: Tail Tag Frame Format TABLE 4-13: Received Tail Tag Format (From Switch to Host) TABLE 4-14: Transmit Tail Tag Format (From Host to Switch) 4.4.10 IGMP Support 4.4.11 IPv6 MLD Snooping 4.4.12 Port Mirroring 4.4.13 Schedule and Rate Limiting 4.4.14 Ingress MAC Address Filtering Function 4.4.15 802.1X Port-Based Access Control 4.4.16 Access Control List (ACL) Filtering TABLE 4-15: ACL Processing Entry Parameters FIGURE 4-6: ACL Structure and Example Rule Values TABLE 4-16: Matching Rule Options TABLE 4-17: ACL Matching Rule Parameters for MD = 01 TABLE 4-18: ACL Matching Rule Parameters for MD = 10 TABLE 4-19: ACL Matching Rule Parameters for MD = 11 TABLE 4-20: ACL Action Rule Parameters for Non-count Modes (MD ≠ 01 or ENB ≠ 00) TABLE 4-21: ACL Action Rule Parameters for count Mode (MD = 01 or ENB = 00) FIGURE 4-7: ACL Table Format TABLE 4-22: ACL Registers 4.5 Clocking 4.5.1 Primary Clock 4.5.2 MAC Interface Clocks 4.5.3 Serial Management Interface Clock 4.6 Power 4.7 Power Management TABLE 4-23: MDI/MDI-X Pin Definitions 4.7.1 Normal Operation Mode 4.7.2 Energy-Detect Mode 4.7.3 Global Soft Power-Down Mode 4.7.4 Port-Based Power Down 4.7.5 Energy Efficient Ethernet (EEE) FIGURE 4-8: Traffic Activity and EEE 4.7.6 Wake on LAN (WoL) 4.8 Management Interface 4.8.1 SPI Slave Serial Bus TABLE 4-24: Register Access using the SPI Interface FIGURE 4-9: SPI Register Read Operation FIGURE 4-10: SPI Register Write Operation 4.8.2 I2C Serial Bus FIGURE 4-11: Single Byte Register Write FIGURE 4-12: Single Byte Register Read FIGURE 4-13: Burst Register Write FIGURE 4-14: Burst Register Read 4.8.3 MII Management (MIIM) Interface TABLE 4-25: MII Management Interface Frame Format TABLE 4-26: Standard MIIM Registers 4.9 In-Band Management FIGURE 4-15: In-Band Management Frame Format 4.10 MAC Interface (RGMII/MII/RMII Port 3) 4.10.1 Media Independent Interface (MII) TABLE 4-27: MII (PHY Mode) Connection to External MAC TABLE 4-28: MII (MAC Mode) Connection to External PHY 4.10.2 Reduced Media Independent Interface (RMII) TABLE 4-29: RMII Signal Descriptions TABLE 4-30: RMII Connection to External MAC TABLE 4-31: RMII Connection to External PHY 4.10.3 Reduced Gigabit Media Independent Interface (RGMII) TABLE 4-32: RGMII Signal Descriptions 5.0 Device Registers FIGURE 5-1: Register Address Mapping FIGURE 5-2: byte ordering TABLE 5-1: Global Register Address Map TABLE 5-2: Port N (1-3) Register Address Map 5.1 Global Registers 5.1.1 Global Operation Control Registers (0x0000 - 0x00FF) 5.1.2 Global I/O Control Registers (0x0100 - 0x01FF) 5.1.3 Global PHY Control and Status Registers (0x0200 - 0x02FF) 5.1.4 Global Switch Control Registers (0x0300 - 0x03FF) 5.1.5 Global Switch Look Up Engine (LUE) Control Registers (0x0400 - 0x04FF) 5.2 Port Registers 5.2.1 Port N: Port Operation Control Registers (0xN000 - 0xN0FF) 5.2.2 Port N: Port Ethernet PHY Registers (0xN100 - 0xN1FF) 5.2.3 Port N: Port RGMII/MII/RMII Control Registers (0xN300 - 0xN3FF) 5.2.4 Port N: Port Switch MAC Control Registers (0xN400 - 0xN4FF) TABLE 5-3: Data Rate Selection Table for Ingress and Egress Rate Limiting 5.2.5 Port N: Port Switch MIB Counters Registers (0xN500 - 0xN5FF) 5.2.6 Port N: Port Switch ACL Control Registers (0xN600 - 0xN6FF) 5.2.7 Port N: Port Switch Ingress Control Registers (0xN800 - 0xN8FF) 5.2.8 Port N: Port Switch Egress Control Registers (0xN900 - 0xN9FF) 5.2.9 Port N: Port Switch Queue Management Control Registers (0xNA00 - 0xNAFF) 5.2.10 Port N: Port Switch Address Lookup Control Registers (0xNB00 - 0xNBFF) 5.3 Tables and MIB Counters (Indirect Access) 5.3.1 Address Lookup (ALU) Table FIGURE 5-3: Address Lookup Table Configuration 5.3.2 Static Address Table 5.3.3 Reserved Multicast Address Table 5.3.4 VLAN Table FIGURE 5-4: VLAN Table Structure TABLE 5-4: VLAN Table Data Fields 5.3.5 Access Control List (ACL) Table TABLE 5-5: ACL Field Register Mapping 5.3.6 Management Information Base (MIB) Counters TABLE 5-6: MIB Counters 5.4 MDIO Manageable Device (MMD) Registers (Indirect) TABLE 5-7: MMD Register Map 5.4.1 MMD LED Mode Register 5.4.2 mmd 1000base-t eee waketx timer register 5.4.3 MMD EEE Advertisement Register 6.0 Operational Characteristics 6.1 Absolute Maximum Ratings* 6.2 Operating Conditions** 6.3 Electrical Characteristics TABLE 6-1: Electrical Characteristics 6.4 Timing Specifications 6.4.1 RGMII Timing FIGURE 6-1: RGMII Timing TABLE 6-2: RGMII Timing Values 6.4.2 MII Timing FIGURE 6-2: MII output Timing in MAC Mode TABLE 6-3: MII output Timing in MAC Mode Values FIGURE 6-3: MII input Timing in MAC Mode TABLE 6-4: MII input Timing in MAC Mode Values FIGURE 6-4: MII Output Timing in PHY Mode TABLE 6-5: MII output Timing in PHY Mode Values FIGURE 6-5: MII input Timing in PHY Mode TABLE 6-6: MII input Timing in PHY Mode Values 6.4.3 RMII Timing FIGURE 6-6: RMII Transmit Timing FIGURE 6-7: RMII Receive Timing TABLE 6-7: RMII Timing Values 6.4.4 MIIM Timing FIGURE 6-8: MIIM Timing TABLE 6-8: MIIM Timing Values 6.4.5 SPI Timing FIGURE 6-9: SPI Data Input Timing FIGURE 6-10: SPI Data Output Timing TABLE 6-9: SPI Timing Values 6.4.6 Auto-Negotiation Timing FIGURE 6-11: Auto-Negotiation Timing TABLE 6-10: Auto-Negotiation Timing Values 6.4.7 Power-up and Reset Timing FIGURE 6-12: Power-up and Reset Timing TABLE 6-11: Power-up and Reset Timing Values 6.5 Clock Specifications FIGURE 6-13: Input Reference Clock Connection Options TABLE 6-12: Reference Crystal Characteristics 7.0 Design Guidelines 7.1 Reset Circuit Guidelines FIGURE 7-1: Simple Reset Circuit FIGURE 7-2: Reset Circuit for CPU Reset Interface 7.2 Magnetics Connection and Selection Guidelines FIGURE 7-3: Typical Magnetic Interface Circuit TABLE 7-1: Magnetics Selection Criteria TABLE 7-2: Compatible Single-Port 10/100/1000 Magnetics 8.0 Package Information 8.1 Package Marking Information 8.2 Package Drawings FIGURE 8-1: Package (Drawing) FIGURE 8-2: Package (Dimensions) FIGURE 8-3: Package (Land Pattern) Appendix A: Data Sheet Revision History The Microchip Web Site Customer Change Notification Service Customer Support Product Identification System Worldwide Sales and Service