KSZ8851-16MLL/MLLI/MLLU Single-Port Ethernet MAC Controller with 8-Bit or 16-Bit Non-PCI Interface Revision 2.3 General Description The KSZ8851M-series is a single-port controller chip with LinkMD a non-PCI CPU interface and is available in 8-bit and 16- bit bus designs. This datasheet describes the 48-pin LQFP Physical signal transmission and reception are enhanced KSZ8851-16MLL for applications requiring high- through the use of analog circuitry. This makes the design performance from a single-port Ethernet controller with an more efficient and allows lower-power consumption. The 8-bit or 16-bit generic processor interface. The KSZ8851- KSZ8851-16MLL is designed using a low-power CMOS 16MLL offers the most cost-effective solution for adding process that features a single 3.3V power supply with high-throughput Ethernet connectivity to traditional options for 1.8V, 2.5V, or 3.3V VDD I/O. The device embedded systems. includes an extensive feature set that offers management information base (MIB) counters and CPU control/data The KSZ8851-16MLL is a single chip, mixed analog/digital interfaces with single shared data bus timing. device offering wake-on-LAN technology for effectively addressing fast Ethernet applications. It consists of a fast The KSZ8851-16MLL includes a unique cable diagnostics Ethernet MAC controller, an 8-bit or 16-bit generic host feature called LinkMD . This feature determines the length processor interface, and incorporates a unique, dynamic of the cabling plant and also ascertains if there is an open memory pointer with 4-byte buffer boundary and a fully or short condition in the cable. Accompanying software utilizable 18KB for both TX (allocated 6KB) and RX enables the cable length and cable conditions to be (allocated 12KB) directions in the host buffer interface. conveniently displayed. In addition, the KSZ8851-16MLL supports Hewlett Packard (HP) Auto-MDIX thereby The KSZ8851-16MLL is designed to be fully compliant with eliminating the need to differentiate between straight or the appropriate IEEE 802.3 standards. An industrial crossover cables in applications. temperature-grade version of the KSZ8851-16MLLI and a qualified AEC-Q100 automotive version of the KSZ8851- Datasheets and support documentation are available on 16MLLU are also available (see the Ordering Information Micrels website at: www.micrel.com. section). Functional Diagram Figure 1. KSZ8851-16MLL/MLLI Functional Diagram LinkMD is a registered trademark of Micrel, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. KSZ8851-16MLL/MLLI/MLLU Features Additional Features In addition to offering all the features of a Layer 2 Integrated MAC and PHY Ethernet Controller fully controller, the KSZ8851-16MLL offers: compliant with IEEE 802.3/802.3 standards Designed for high performance and high throughput Flexible 8-bit and 16-bit generic host processor applications interfaces with same access time and single bus timing to any I/O registers and RX/TX FIFO buffers Supports 10BASE-T/100BASE-TX Supports to add two-byte before frame header in order Supports IEEE 802.3x full-duplex flow control and half- for IP frame content with double word boundary duplex backpressure collision flow control Micrel LinkMD cable diagnostic capabilities to Supports DMA-slave burst data read and write transfers determine cable length, diagnose faulty cables, and Supports IP Header (IPv4)/TCP/UDP/ICMP checksum determine distance to fault generation and checking Wake-on-LAN functionality Supports IPv6 TCP/UDP/ICMP checksum generation Incorporates Magic Packet, wake-up frame, and checking network link state, and detection of energy signal Automatic 32-bit CRC generation and checking technology Simple SRAM-like host interface easily connects to most HP Auto MDI-X crossover with disable/enable option common embedded MCUs. Ability to transmit and receive frames up to 2000 bytes Supports multiple data frames for receive without address bus and byte-enable signals Network Features Supports both Big- and Little-Endian processors 10BASE-T and 100BASE-TX physical layer support Larger internal memory with 12KB for RX FIFO and 6KB Auto-negotiation: 10/100 Mbps full and half duplex for TX FIFO. Programmable low, high and overrun Adaptive equalizer watermark for flow control in RX FIFO Baseline wander correction Shared data bus for Data, Address and Byte Enable Efficient architecture design with configurable host Applications interrupt schemes to minimize host CPU overhead and Video/Audio Distribution Systems utilization High-end Cable, Satellite, and IP set-top boxes Powerful and flexible address filtering scheme Video over IP and IPTV Optional to use external serial EEPROM configuration Voice over IP (VoIP) and Analog Telephone Adapters for MAC address (ATA) Single 25MHz reference clock for both PHY and MAC Industrial Control in Latency Critical Applications HBM ESD Rating 6kV Home Base Station with Ethernet Connection Power Modes, Power Supplies, and Packaging Industrial Control Sensor Devices (Temperature, Single 3.3V power supply with options for 1.8V, 2.5V Pressure, Levels, and Valves) and 3.3V VDD I/O Security, Motion Control and Surveillance Cameras Built-in integrated 3.3V or 2.5V to 1.8V low noise In-vehicle Diagnostics (OBD) and software download regulator (LDO) for core and analog blocks Markets Enhanced power management feature with energy detect mode and soft power-down mode to ensure low- Fast Ethernet power dissipation during device idle periods Embedded Ethernet Comprehensive LED indicator support for link, activity Industrial Ethernet and 10/100 speed (2 LEDs) - User programmable Embedded Systems Low-power CMOS design Automotive Ethernet Commercial Temperature Range: 0C to +70C Industrial Temperature Range: 40C to +85C Flexible package options available in 48-pin (7mm 7mm) LQFP KSZ8851-16MLL or 128-pin PQFP KSZ8851-16/32MQL March 12, 2015 Revision 2.3 2