Datasheet KSZ9897R (Microchip) - 9

link to page 10 link to page 9 link to page 11 link to page 11 link to page 11 link to page 6
KSZ9897R 3.0 PIN DESCRIPTIONS AND CONFIGURATION 3.1 Pin Assignments
The device pin diagram for the KSZ9897R can be seen in Figure 3-1. Table 3-1 provides a KSZ9897R pin assignment table. Pin descriptions are provided in Section 3.2, "Pin Descriptions".
FIGURE 3-1: PIN ASSIGNMENTS (TOP VIEW) 7 L T C _ X 7 7 /R 7 V7 LKO L LKI D C T C _ F C F 25 E _ E RS N 7/R 7/R 25_1 N /C /TX 0 1 2 3 7 0 P_ N L L _ _1 _0 _1 _0 _1 _0 R7 V LK R7 N7 LK 2 2 3 3 4 4 7 D 7_0 7_1 7_2 7_3 E E C SET_ KO_ R E D D D D DD D D D D7_ D7_ D7_ D7_ S _E DIO _ _C DD D D D D L7 _ _ _ D6_ E X X R CL INT PM LE LE NC LE LE DV LE LE GN RX RX RX RX CR RX VD R R DV TX TX TX TX CO TX TX TX RX
96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
SDO
97 64
RXD6_1 SDI/SDA/MDIO
98 63
RXD6_2 VDDIO
99 62
RXD6_3 SCS_N
100 61
VDDIO SCL/MDC
101 60
CRS6 LED5_0
102 59
RX_ER6 LED5_1
103 58
RX_DV6/CRS_DV6/RX_CTL6 DVDDL
104 57
RX_CLK6/REFCLKO6 LED1_0
105 56
DVDDL LED1_1
106 55
TXD6_0 GND
107 54
TXD6_1 NC
108 53
TXD6_2 GND
109 52
TXD6_3 DVDDL
110
AVDDH
111
KSZ9897R
51
COL6
50
TX_ER6 TXRX5P_A
112 49
TX_EN6/TX_CTL6 TXRX5M_A
113
128-TQFP-EP
48
TX_CLK6/REFCLKI6 AVDDL
114 47
GND TXRX5P_B
115
(Top View)
46
GND TXRX5M_B
116 45
DVDDL TXRX5P_C
117 44
AVDDH TXRX5M_C
118 43
TXRX4M_D AVDDL
119 42
TXRX4P_D TXRX5P_D
120 41
AVDDL TXRX5M_D
121 40
TXRX4M_C AVDDH
122 39
TXRX4P_C GND
123
G N D
38
TXRX4M_B AVDDL
124 (Connect exposed pad to ground with a via field) 37
TXRX4P_B XO
125 36
AVDDL XI
126 35
TXRX4M_A ISET
127 34
TXRX4P_A AVDDH
128 33
AVDDH
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
L B B L L B B L L B B L _A _ _C _D _A _ _C _D _A _ _C _D 1P_A M DD 1P_ M 1P_C M 1P_D M DDH DD 2P_A M DD 2P_ M 2P_C M DD 2P_D M DDH DD 3P_A M 3P_ M 3P_C M DD 3P_D M X 1 1 X 1 X 1 V X 2 2 X 2 X 2 V X 3 3 X 3 X 3 R X AV R X R X A DV R X AV R X AV R X A DV R X R X AV R X X R XRX RX X R X R X R XRX RX X R X R X R XRX RX X R X R T TX T TX T TX T TX T TX T TX T TX T TX T TX T TX T TX T TX Note:
When an “
_N
” is used at the end of the signal name, it indicates that the signal is active low. For example,
RESET_N
indicates that the reset signal is active low. The buffer type for each signal is indicated in the “Buffer Type” column of the pin description tables in Sec- tion 3.2, "Pin Descriptions". A description of the buffer types is provided in Section 1.2, "Buffer Types".  2017-2019 Microchip Technology Inc. DS00002330D-page 9 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 Fast Link-Up 4.1.9 LinkMD® Cable Diagnostics 4.1.10 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: Receive 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 Scheduling and Rate Limiting 4.4.14 Ingress MAC Address Filtering Function 4.4.15 802.1X 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 NAND Tree Support TABLE 4-23: NAND Tree Test Pin Order 4.6 Clocking 4.6.1 Primary Clock 4.6.2 MAC Interface Clocks 4.6.3 Serial Management Interface Clock 4.6.4 CLKO_25_125 4.7 Power FIGURE 4-8: Power Connection Diagram 4.8 Power Management TABLE 4-24: MDI/MDI-X Pin Definitions 4.8.1 Normal Operation Mode 4.8.2 Energy-Detect Mode 4.8.3 Global Soft Power-Down Mode 4.8.4 Port-Based Power Down 4.8.5 Wake on LAN (WoL) 4.9 Management Interface 4.9.1 SPI Slave Bus TABLE 4-25: Register Access using the SPI Interface FIGURE 4-9: SPI Register Read Operation FIGURE 4-10: SPI Register Write Operation 4.9.2 I2C 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 4.9.3 MII Management (MIIM) Interface TABLE 4-26: MII Management Interface Frame Format TABLE 4-27: Standard MIIM Registers 4.10 In-Band Management FIGURE 4-15: In-Band Management Frame Format 4.11 MAC Interface (RGMII/MII/RMII Port 6-7) 4.11.1 Media Independent Interface (MII) TABLE 4-28: MII (PHY Mode) Connection to External MAC TABLE 4-29: MII (MAC Mode) Connection to External PHY 4.11.2 Reduced Media Independent Interface (RMII) TABLE 4-30: RMII Signal Descriptions TABLE 4-31: RMII Connection to External MAC TABLE 4-32: RMII Connection to External PHY 4.11.3 Reduced Gigabit Media Independent Interface (RGMII) TABLE 4-33: 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 (1-7) 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) 5.2 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 (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 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 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 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