KSZ8993M Datasheet PDF - Micrel

●General Description

●The KSZ8993M, a highly integrated Layer 2 managed switch, is designed for low port count, cost-sensitive 10/100 Mbps switch systems. It offers an extensive feature set that includes tag/port-based VLAN, quality of service (QoS) priority, management, management information base (MIB) counters, MII/SNI, and CPU control/data interfaces to effectively address both current and emerging Fast Ethernet applications.

●Features

●• Proven Integrated 3-Port 10/100 Ethernet Switch

●– 2nd generation switch with three MACs and two PHYs fully compliant to IEEE 802.3u standard

●– Non-blocking switch fabric assures fast packet delivery by utilizing a 1K MAC address lookup table and a store-and-forward architecture

●– Full duplex IEEE 802.3x flow control (pause) with force mode option

●– Half-duplex back pressure flow control

●– Automatic MDI/MDI-X crossover with disable and enable option

●– 100BASE-FX support on port 1

●– MII interface supports both MAC mode and PHY mode

●– 7-wire serial network interface (SNI) support for legacy MAC

●– Comprehensive LED Indicator support for link, activity, full/half duplex and 10/100 speed

●• Comprehensive Configuration Register Access

●– Serial management interface (SMI) to all internal registers

●– MII management (MIIM) interface to PHY registers

●– SPI and I2C Interface to all internal registers

●– I/0 Pins strapping and EEPROM to program selective registers in unmanaged switch mode

●– Control registers configurable on the fly (port priority, 802.1p/d/q, AN…)