The MosChip MCS8140 is a highly integrated general purpose network processor that can be used in a variety of products that require network connectivity. The CPU subsystem of the MCS8140 consists of a 170 MHz ARM926EJ-S, 32-bit RISC microprocessor delivering approximately 1.1 MIPS per MHz.

The MCS8140 network processor contains four high speed USB 2.0 Ports. These ports have been designed to connect a wide range of USB-based devices to an Ethernet network (Internet or Intranet).

The 32-bit, 33MHz PCI host interface supports PCI devices which are compatible / compliant to the PCI 2.2 or 2.3 standard. The PCI controller can support up to two PCI devices. This allows the MCS8140 to connect to a variety of PCI devices such as 802.11x peripherals, Audio Controllers, PCI-SATA and PCI-IDE controllers.

The Ethernet controller in the MCS8140 contains a media access controller (MAC) and physical layer (PHY). The Ethernet interface can be connected directly to external magnetics, LED's and connectors.

In addition, the MCS8140 provides an alternate Ethernet configuration that does not use the internal PHY. In this configuration all the MII pins are available on the GPIO interface.

A robust Security Engine handles all IPSec functions including the DES, 3DES, AES, MD5, SHA-1, and SHA-256 algorithms.

The interface pins for the on-chip I²S audio controller are multiplexed with the GPIO pins and can be used for controlling an external I²S Codec. The MCS8140 also has a software emulated serial interface which can be used to connect to a standard SPI EPROM. It also provides a local bus for system expansion.

Applications

The MCS8140 can be used in the following sample applications:
	Networked USB server/extended USB ports
	Networked USB print server
	Secure NAS (Network Attached Storage)
	WAP — Wireless Access Point / Gateway

Features

CPU

	32-bit, 170 MHz ARM926EJS CPU with MMU
	16K, 4 Way Associative Instruction & Data Caches
	V5 Instruction Set
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