Single-chip Ethernet device

Freescale Semiconductor has introduced the industry’s first complete, single-chip 10/100Mbps Ethernet device. The 16-bit MC9S12NE64 microcontroller replaces more complex multi-chip Ethernet offerings.

Freescale Semiconductor believes it has reduced complexity and cost for system designers with the introduction of the industry’s first complete, single-chip 10/100Mbps Ethernet device. The 16-bit MC9S12NE64 microcontroller replaces more complex multi-chip Ethernet offerings.

“Designers who choose the MC9S12NE64 can expect to reap the benefits of a single-chip Fast Ethernet (100Mbps) solution, increasing reliability and reducing the size of the Ethernet control ‘footprint’ within a system,” said Daniel Hoste, vice president and general manager of Freescale’s 8/16-bit Products Division. “These benefits help make Ethernet connectivity an easy option for new applications and low-cost systems where it may not have been practical in the past.”

Ethernet is a common method of networking computers in a LAN (Local Area Network). It is used to connect embedded devices within a LAN or to the Internet. Today’s embedded devices often perform monitoring and control functions, such as gathering data from sensors or controlling electric motors or switches. Using an Ethernet connection, these devices can now be controlled remotely or distribute data over a network.

Typical embedded Ethernet applications include industrial controls, security systems, building automation, lighting controls, power supply monitors, vending machines and point-of-sale terminals.

The MC9S12NE64 is said to be the first in a Freescale series of 16-bit microcontrollers with embedded Ethernet connectivity. It provides a complete, cost-effective solution for industrial control applications and embedded systems that could benefit from network connectivity.

The MC9S12NE64 is based on Freescale’s HCS12 central processing unit (CPU) platform. It offers a communications stack, flash memory, random access memory (RAM), a media access controller (MAC) and physical layer (PHY) transceiver in a single low-pin-count package.

Specific MC9S12NE64 features include embedded 10/100 Mbps Ethernet PHY and MAC, compliant with the IEEE 802.3 specification; a high-performance 25MHz HCS12 core; a four-channel 16-bit timer and two serial communication interfaces (SCIs) and a serial peripheral interface running at speeds up to 6.25 Mbps, and an inter IC bus.

Freescale partners CMX and Treck offer flash-based TCP/IP stack software licensing, and a port of the openTCP open source stack (originated by Viola Systems) is also available.

The MC9S12NE64 supports a full set of TCP/IP application protocols using the IP version 4 (IPv4) standard. The MC9S12NE64 is also built for the newer IP version 6 (IPv6) TCP/IP protocol. This combined functionality gives the MC9S12NE64 ample headroom to accommodate the next generation of networked applications.

The MC9S12NE64 is now available in sample quantities.

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