Micrel KSZ8895 Specifications download pdf (Page 2)

Micrel, Inc.

KSZ8895MQ/RQ/FMQ

Features

Advanced Switch Features

• IEEE 802.1q VLAN support for up to 128 active VLAN groups

(full-range 4096 of VLAN IDs).

• Static MAC table supports up to 32 entries.

• VLAN ID tag/untag options, per port basis

• IEEE 802.1p/q tag insertion or removal on a per port basis

based on ingress port (egress).

• Programmable rate limiting at the ingress and egress on a per

port basis.

• Jitter-free per packet based rate limiting support.

• Broadcast storm protection with percentage control (global

and per port basis).

• IEEE 802.1d rapid spanning tree protocol RSTP support.

• Tail tag mode (1 byte added before FCS) support at Port 5 to

inform the processor which ingress port receives the packet.

• 1.4Gbps high-performance memory bandwidth and shared

memory-based switch fabric with fully

non-blocking configuration.

• Dual MII with MAC5 and PHY5 on port 5, SW5-MII/RMII for

MAC 5 and P5-MII/RMII for PHY 5.

• Enable/Disable option for huge frame size up to 2000 Bytes

per frame.

• IGMP v1/v2 snooping (Ipv4) support for multicast packet

filtering.

• IPv4/IPv6 QoS support.

• Support unknown unicast/multicast address and unknown VID

packet filtering.

• Self-address filtering.

Comprehensive Configuration Register Access

• Serial management interface (MDC/MDIO) to all PHYs

registers and SMI interface (MDC/MDIO) to all registers.

• High speed SPI (up to 25MHz) and I

C master 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).

QoS/CoS Packet Prioritization Support

• Per port, 802.1p and DiffServ-based.

• 1/2/4-queue QoS prioritization selection.

• Programmable weighted fair queuing for ratio control.

• Re-mapping of 802.1p priority field per port basis.

Integrated Five-Port 10/100 Ethernet Switch

• New generation switch with five MACs and five PHYs with

fully compliant with IEEE 802.3u standard.

• PHYs designed with patented enhanced mixed-signal

technology.

• Non-blocking switch fabric assures fast packet delivery by

utilizing a 1K MAC address lookup table and a store-and-

forward architecture.

• On-chip 64Kbyte memory for frame buffering (not shared with

1K unicast address table).

• Full duplex IEEE 802.3x flow control (PAUSE) with force

mode option.

• Half-duplex back pressure flow control.

• HP Auto MDI/MDI-X and IEEE Auto crossover support.

• SW-MII interface supports both MAC mode and PHY mode.

• 7-wire serial network interface (SNI) support for legacy MAC.

• Per port LED Indicators for link, activity, and 10/100 speed.

• Register port status support for link, activity, full/half duplex

and 10/100 speed.

• On-chip terminations and internal biasing technology for cost

down and lowest power consumption.

Switch Monitoring Features

• Port mirroring/monitoring/sniffing: ingress and/or egress traffic

to any port or MII.

• MIB counters for fully compliant statistics gathering 34 MIB

counters per port.

• Loop-back support for MAC, PHY and remote diagnostic of

failure.

• Interrupt for the link change on any ports.

Low Power Dissipation

• Full-chip hardware power-down.

• Full-chip software power-down and per port software power

down.

• Energy-detect mode support < 100mW full chip-power

consumption when all ports have no activity.

• Very low full chip power consumption (<0.5W), without extra

power consumption on transformers.

• Dynamic clock tree shutdown feature.

• Voltages: Single 3.3V supply with 3.3V VDDIO and Internal

1.2V LDO controller enabled, or external 1.2V LDO solution.

– Analog VDDAT 3.3V only.

– VDDIO support 3.3V, 2.5V and 1.8V.

– Low 1.2V core power .

• 0.13µm CMOS technology.

• Commercial temperature range: 0°C to +70°C.

• Industrial Temperature Range: -40°C to +85°C.

• Available in 128-pin PQFP lead-free package.

Applications

• VoIP phone

• Set-top/game box

• Automotive

• Industrial control

• IPTV POF

• SOHO residential gateway

• Broadband gateway/firewall/VPN

• Integrated DSL/cable modem

• Wireless LAN access point + gateway

• Standalone 10/100 switch

March 19, 2014 2

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Micrel KSZ8895 Specifications Page 2

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