Features

? Switch Management Capabilities

- 10/100/1000Mbps Ethernet switch basic functions:

frame buffer management, address look-up table,

queue management, MIB counters

- Non-blocking store-and-forward switch fabric assures

fast packet delivery by utilizing 4096 entry forwarding

table with 128kByte frame buffer

- Jumbo packet support up to 9000 bytes

- Port mirroring/monitoring/sniffing:

ingress and/or egress traffic to any port

- MIB counters for fully-compliant statistics gathering

34 counters per port

- Tail tagging mode (one byte added before FCS) support

at host port to inform the processor which ingress

port receives the packet and its priority

- Loopback modes for remote failure diagnostics

- Rapid spanning tree protocol (RSTP) support for topology

management and ring/linear recovery

- Multiple spanning tree protocol (MSTP) support

? Two Robust Integrated PHY Ports

- 1000BASE-T/100BASE-TX/10BASE-T IEEE 802.3

- Fast Link-up option significantly reduces link-up time

- Auto-negotiation and Auto-MDI/MDI-X support

- Energy-Efficient Ethernet (EEE) support with lowpower

idle mode and clock stoppage

- On-chip termination resistors and internal biasing for

differential pairs to reduce power

- LinkMD? cable diagnostic capabilities for determining

cable opens, shorts, and length

? One Configurable External MAC Port

- Reduced Gigabit Media Independent Interface

(RGMII) v2.0

- Reduced Media Independent Interface (RMII) v1.2

with 50MHz reference clock input/output option

- Media Independent Interface (MII) in PHY/MAC mode

? Advanced Switch Capabilities

- IEEE 802.1Q VLAN support for 128 active VLAN

groups and the full range of 4096 VLAN IDs

- IEEE 802.1p/Q tag insertion/removal on per port basis

- VLAN ID on per port or VLAN basis

- IEEE 802.3x full-duplex flow control and half-duplex

back pressure collision control

- IEEE 802.1X (Port-Based Network Access Control)

- IGMP v1/v2/v3 snooping for multicast packet filtering

- IPv6 multicast listener discovery (MLD) snooping

- IPv4/IPv6 QoS support, QoS/CoS packet prioritization

- 802.1p QoS packet classification with 4 priority queues

- Programmable rate limiting at ingress/egress ports

- Broadcast storm protection

- Four priority queues with dynamic packet mapping for

IEEE 802.1p, IPv4 DIFFSERV, IPv6 Traffic Class

- MAC filtering function to filter or forward unknown unicast,

multicast and VLAN packets

- Self-address filtering for implementing ring topologies

? Comprehensive Configuration Registers Access

- High-speed 4-wire SPI (up to 50MHz), I2C interfaces

provide access to all internal registers

- MII Management (MIIM, MDC/MDIO 2-wire) Interface

provides access to all PHY registers

- In-band management via any of the three ports

- I/O pin strapping facility to set certain register bits from

I/O pins at reset time

- On-the-fly configurable control registers

? Power Management

- IEEE 802.3az Energy Efficient Ethernet (EEE)

- Energy detect power-down mode on cable disconnect

- Dynamic clock tree control

- Unused ports can be individually powered down

- Full-chip software power-down

- Wake-on-LAN (WoL) standby power mode

Target Applications

? Stand-alone 10/100/1000Mbps Ethernet switches

? VoIP infrastructure switches

? Broadband gateways/firewalls

? Wi-Fi access points

? Integrated DSL/cable modems

? Security/surveillance systems

? Industrial control/automation switches

? Networked measurement and control systems

KSZ9893RNXC屬于集成電路（IC） > 控制器。微芯科技股份有限公司制造生產(chǎn)的KSZ9893RNXC控制器該系列產(chǎn)品主要用于在采用不同通信協(xié)議和/或信令方法的端點之間提供信息連接。示例包括將 I2C 總線連接到 UART，將 USB 連接到 I2C、SPI、以太網(wǎng)或 UART、以太網(wǎng) MAC 和 PHY 等的器件。此外，還包括用于通過為點對點通信設(shè)計的接口建立多路連接的器件，例如 USB 集線器控制器。