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MCS8140
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 EEPROM. 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
USB Host
- Four USB 2.0 ports with on-chip transceivers
- Single Enhanced Host Controller Interface (EHCI) controller
- Two Open Host Controller Interface (OHCI) controllers
- Compatible with bulk, interrupt and isochronous type USB devices
- OTG features supported on USB port 0
- On-chip OTG PHY
Ethernet
- IEEE 802.3 compliant 10/100Mbps Ethernet MAC and PHY with full/half duplex operation
- Supports Auto MDIX feature
- MII interface option for connecting an external PHY
Memory Controller
- Up to 64 MB, 100 MHz SDRAM Interface with x16 and x32 bit modes
- Up to 16 MB, 8-bit parallel Flash Interface
- 8/16-bit Local bus interface
Security Engine
- AES and DES/3DES hardware encryption and decryption
- SHA1, SHA256 and MD5 authentication in hardware
Other
- TOE (TCP / IP Offload Engine)
- Ethernet List Processing Engine
- 32bit, 33MHz PCI Host supports two PCI devices
- Standard UART supports up to 115200 bps
- I2S controller to interface with an external I2S audio Codec
- Up to 20 interrupt-capable GPIOs
- Software emulated SPI EEPROM interface
- JTAG interface for advanced debugging
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