Datasheet KSZ9477S (Microchip) - 8

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KSZ9477S 2.0 INTRODUCTION 2.1 General Description
The KSZ9477S is a highly-integrated, IEEE 802.3 compliant networking device that incorporates a layer-2 managed Gigabit Ethernet switch, five 10BASE-Te/100BASE-TX/1000BASE-T physical layer transceivers (PHYs) and associated MAC units, and two individually configurable MAC ports (one SGMII interface, one RGMII/MII/RMII interface) for direct connection to a host processor/controller, another Ethernet switch, or an Ethernet PHY transceiver. The SGMII port has two modes of operation: SerDes mode (which supports 1000BASE-X fiber) and SGMII mode. The KSZ9477S is built upon industry-leading Ethernet technology, with features designed to offload host processing and streamline the overall design: • Non-blocking wire-speed Ethernet switch fabric supports 1 Gbps on RGMII • Full-featured forwarding and filtering control, including port-based Access Control List (ACL) filtering • Full VLAN and QoS support • Traffic prioritization with per-port ingress/egress queues and by traffic classification • Spanning Tree support • IEEE 802.1X access control support As a member of the EtherSynch product family, the KSZ9477S incorporates full hardware support for the IEEE 1588v2 Precision Time Protocol (PTP), including hardware time-stamping at all PHY-MAC interfaces, and a high-resolution hardware “PTP clock”. IEEE 1588 provides sub-microsecond synchronization for a range of industrial Ethernet applica- tions. The KSZ9477S fully supports the IEEE family of Audio Video Bridging (AVB) standards, which provides high Quality of Service (QoS) for latency sensitive traffic streams over Ethernet. Time-stamping and time-keeping features support IEEE 802.1AS time synchronization. All ports feature credit based traffic shapers for IEEE 802.1Qav, and a time aware scheduler as proposed for IEEE 802.1Qbv. The KSZ9477S also incorporates features that simplify the implementation of DLR and HSR redundancy protocols by offloading tasks from the host processor. For DLR networks, these features include Beacon frame generation, Beacon timeout detection, and MAC table flushing. HSR networks are supported with automatic duplicate frame discard and self-address filtering. The 100Mbps PHYs feature Quiet-WIRE internal filtering to reduce line emissions and enhance immunity to environ- mental noise. It is ideal for automotive or industrial applications where stringent radiated emission limits must be met. A host processor can access all KSZ9477S registers for control over all PHY, MAC, and switch functions. Full register access is available via the integrated SPI or I2C interfaces, and by in-band management via any one of the data ports. PHY register access is provided by a MIIM interface. Flexible digital I/O voltage allows the MAC port to interface directly with a 1.8/2.5/3.3V host processor/controller/FPGA. Additionally, a robust assortment of power-management features including Wake-on-LAN (WoL) for low power standby operation, have been designed to satisfy energy-efficient system requirements. The KSZ9477S is available in an industrial (-40°C to +85°C) temperature range. An internal block diagram of the KSZ9477S is shown in Figure 2-1. DS00002392C-page 8  2017-2019 Microchip Technology Inc. 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-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 Quiet-WIRE Filtering TABLE 4-2: Enabling and Disabling Quiet-WIRE 4.1.9 Fast Link-Up 4.1.10 LinkMD® Cable Diagnostics 4.1.11 LinkMD®+ Enhanced Diagnostics: Receive Signal Quality Indicator 4.1.12 Remote PHY Loopback FIGURE 4-2: Remote PHY Loopback 4.2 LEDs 4.2.1 Single-LED Mode TABLE 4-3: Single-LED Mode Pin Definition 4.2.2 Tri-Color Dual-LED Mode TABLE 4-4: 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 4-5: 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 4-6: Address Lookup Table Hashing Options TABLE 4-7: Reserved Multicast Address Table FIGURE 4-3: Packet Forwarding Process Flowchart TABLE 4-8: Lookup Engine Registers 4.4.3 IEEE 802.1Q VLAN TABLE 4-9: VLAN Forwarding TABLE 4-10: Hashed(DA) + FID Lookup in VLAN Mode TABLE 4-11: Hashed(SA) + FID Lookup in VLAN Mode TABLE 4-12: 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 4-13: 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 4-14: Receive Tail Tag Format (from Switch to Host) TABLE 4-15: Transmit Tail Tag Format (from Host to Switch) FIGURE 4-6: PTP Mode Tail Tag Frame Format 4.4.10 IGMP Support 4.4.11 IPv6 MLD Snooping 4.4.12 Port Mirroring 4.4.13 Scheduling and Rate Limiting 4.4.14 Egress Traffic Shaping 4.4.15 Low Latency Cut-Through Mode 4.4.16 Ingress MAC Address Filtering Function 4.4.17 802.1X Access Control 4.4.18 Access Control List (ACL) Filtering TABLE 4-16: ACL Processing Entry Parameters FIGURE 4-7: ACL Structure and Example Rule Values TABLE 4-17: Matching Rule Options TABLE 4-18: ACL Matching Rule Parameters for MD = 01 TABLE 4-19: ACL Matching Rule Parameters for MD = 10 TABLE 4-20: ACL Matching Rule Parameters for MD = 11 TABLE 4-21: ACL Action Rule Parameters for Non-count Modes (MD ≠ 01 or ENB ≠ 00) TABLE 4-22: ACL Action Rule Parameters for count Mode (MD = 01 or ENB = 00) FIGURE 4-8: ACL Table Format TABLE 4-23: ACL Registers 4.5 Ring Redundancy 4.5.1 Device Level Ring (DLR) 4.5.2 High Availability Seamless Redundancy (HSR) 4.6 IEEE 1588 Precision Time Protocol 4.6.1 IEEE 1588 PTP System Time Clock FIGURE 4-9: PTP System Clock Overview 4.6.2 IEEE 1588 PTP Messaging Processing 4.6.3 IEEE 1588 PTP Event Triggering and Timestamping 4.7 Audio Video Bridging and Time Sensitive Networks 4.8 NAND Tree Support TABLE 4-24: NAND Tree Test Pin Order 4.9 Clocking 4.9.1 Primary Clock 4.9.2 Port 6 RGMII/MII/RMII Clocks 4.9.3 Port 7 SGMII Clock 4.9.4 Serial Management Interface Clock 4.9.5 Synchronous Ethernet and SYNCLKO 4.10 Power FIGURE 4-10: Power Connection Diagram 4.11 Power Management TABLE 4-25: MDI/MDI-X Pin Definitions 4.11.1 Normal Operation Mode 4.11.2 Energy-Detect Mode 4.11.3 Global Soft Power-Down Mode 4.11.4 Port-Based Power Down 4.11.5 Wake on LAN (WoL) 4.12 Management Interface 4.12.1 SPI Slave Bus TABLE 4-26: Register Access using the SPI Interface FIGURE 4-11: SPI Register Read Operation FIGURE 4-12: SPI Register Write Operation 4.12.2 I2C Bus FIGURE 4-13: Single Byte Register Write FIGURE 4-14: Single Byte Register Read FIGURE 4-15: Burst Register Write FIGURE 4-16: Burst Register Read 4.12.3 MII Management (MIIM) Interface TABLE 4-27: MII Management Interface Frame Format TABLE 4-28: Standard MIIM Registers 4.13 In-Band Management FIGURE 4-17: In-Band Management Frame Format 4.14 MAC Interface (Ports 6 and 7) 4.14.1 Media Independent Interface (MII) (Port 6) TABLE 4-29: MII (PHY Mode) Connection to External MAC TABLE 4-30: MII (MAC Mode) Connection to External PHY 4.14.2 Reduced Media Independent Interface (RMII) (Port 6) TABLE 4-31: RMII Signal Descriptions TABLE 4-32: RMII Connection to External MAC TABLE 4-33: RMII Connection to External PHY 4.14.3 Reduced Gigabit Media Independent Interface (RGMII) (Port 6) TABLE 4-34: RGMII Signal Descriptions 4.14.4 Serial Gigabit Media Independent Interface (SGMII) (Port 7) 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 (1-7) 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) 5.1.6 Global Switch PTP Control Registers (0x0500 - 0x05FF) 5.1.7 Global Switch Ring Redundancy Control Registers (0x0600 - 0x06FF) 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 SGMII Control Registers (0xN200 - 0xN2FF) 5.2.4 Port N: Port RGMII/MII/RMII Control Registers (0xN300 - 0xN3FF) 5.2.5 Port N: Port Switch MAC Control Registers (0xN400 - 0xN4FF) TABLE 5-3: Data Rate Selection Table for Ingress and Egress Rate Limiting 5.2.6 Port N: Port Switch MIB Counters Registers (0xN500 - 0xN5FF) 5.2.7 Port N: Port Switch ACL Control Registers (0xN600 - 0xN6FF) 5.2.8 Port N: Port Switch Ingress Control Registers (0xN800 - 0xN8FF) 5.2.9 Port N: Port Switch Egress Control Registers (0xN900 - 0xN9FF) 5.2.10 Port N: Port Switch Queue Management Control Registers (0xNA00 - 0xNAFF) 5.2.11 Port N: Port Switch Address Lookup Control Registers (0xNB00 - 0xNBFF) 5.2.12 Port N: Port Switch PTP Control Registers (0xNC00 - 0xNCFF) 5.3 Tables and MIB Counters (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 Signal Quality Channel A Register 5.4.2 MMD Signal Quality Channel B Register 5.4.3 MMD Signal Quality Channel C Register 5.4.4 MMD Signal Quality Channel D Register 5.4.5 MMD LED Mode Register 5.4.6 MMD EEE Advertisement Register 5.4.7 MMD Quiet-WIRE Configuration 0 Register 5.4.8 MMD Quiet-WIRE Configuration 1 Register 5.4.9 MMD Quiet-WIRE Configuration 2 Register 5.4.10 MMD Quiet-WIRE Configuration 3 Register 5.4.11 MMD Quiet-WIRE Configuration 4 Register 5.4.12 MMD Quiet-WIRE Configuration 5 Register 5.4.13 MMD Quiet-WIRE Configuration 6 Register 5.4.14 MMD Quiet-WIRE Configuration 7 Register 5.4.15 MMD Quiet-WIRE Configuration 8 Register 5.4.16 MMD Quiet-WIRE Configuration 9 Register 5.4.17 MMD Quiet-WIRE Configuration 10 Register 5.4.18 MMD Quiet-WIRE Configuration 11 Register 5.4.19 MMD Quiet-WIRE Configuration 12 Register 5.4.20 MMD Quiet-WIRE Configuration 13 Register 5.4.21 MMD Quiet-WIRE Configuration 14 Register 5.4.22 MMD Quiet-WIRE Configuration 15 Register 5.5 SGMII Registers (Indirect) TABLE 5-8: SGMII Register Map (Indirect) 5.5.1 SGMII Control Register 5.5.2 SGMII Status Register 5.5.3 SGMII PHY ID 1 Register 5.5.4 SGMII PHY ID 2 Register 5.5.5 SGMII Auto-Negotiation Advertisement Register 5.5.6 SGMII Auto-Negotiation Link Partner Base Ability Register 5.5.7 SGMII Auto-Negotiation Expansion Register 5.5.8 SGMII Digital Control Register 5.5.9 SGMII Auto-Negotiation Control Register 5.5.10 SGMII Auto-Negotiation Status 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 Transmit Timing in MAC Mode TABLE 6-3: MII Transmit Timing in MAC Mode Values FIGURE 6-3: MII Receive Timing in MAC Mode TABLE 6-4: MII Receive Timing in MAC Mode Values FIGURE 6-4: MII Receive Timing in PHY Mode TABLE 6-5: MII Receive Timing in PHY Mode Values FIGURE 6-5: MII Transmit Timing in PHY Mode TABLE 6-6: MII Transmit 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 Trigger Output Unit and Timestamp Input Unit Timing FIGURE 6-12: Trigger Output Unit and Timestamp Input Unit Timing TABLE 6-11: Auto-Negotiation Timing Values 6.4.8 Power-up and Reset Timing FIGURE 6-13: Power-up and Reset Timing TABLE 6-12: Power-up and Reset Timing Values 6.5 Clock Specifications FIGURE 6-14: Input Reference Clock Connection Options TABLE 6-13: 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