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LAN91C110TQFP Datasheet

  • LAN91C110TQFP

  • FEAST FAST ETHERNET CONTROLLER FOR PCMCIA AND GENERIC 16-BIT...

  • 55頁

  • SMSC   SMSC

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LAN91C110 REV. B
PRELIMINARY
FEAST Fast Ethernet Controller
for PCMCIA and Generic 16-Bit Applications
FEATURES
Dual Speed CSMA/CD Engine (10 Mbps and 100
Mbps)
Compliant with IEEE 802.3 100BASE-T
Specification
Supports 100BASE-TX, 100BASE-T4
16 Bit Wide Data Path (into Packet Buffer Memory)
Generic 16-bit System Level Interface Easily
Adaptable to ISA, PCMCIA (16-bit CardBus), and
Various CPU System Interfaces
Support for 16 and 8 Bit CPU Accesses
Asynchronous Bus Interface
128 Kbyte External Memory
Built-in Transparent Arbitration for Slave Sequential
Access Architecture
Early TX, Early RX Functions
Flat MMU Architecture with Symmetric Transmit
and Receive Structures and Queues
IEEE-802.3 MII (Media Independent Interface)
Compliant MAC-PHY Interface Running at Nibble
Rate
MII Management Serial Interface
IEEE-802.3u Full Duplex Capability
144 Pin TQFP Package (1.0 Millimeter Height)
GENERAL DESCRIPTION
The LAN91C110 is designed to facilitate the implementation of second generation Fast Ethernet PC Card adapters and
other non-PCI connectivity products. The LAN91C110 is a digital device that implements the Media Access Control (MAC)
portion of the CSMA/CD protocol at 10 and 100 Mbps, and couples it with a lean and fast data and control path system
architecture to ensure that the CPU to packet RAM data movement does not cause a bottleneck at 100 Mbps.
The LAN91C110 implements a generic 16-bit host interface which is adaptable to a wide range of system buses and
CPUs. This makes the LAN91C110 ideal for 10/100 Fast Ethernet implementations in systems based on system buses
other than PCI.
Total memory size is 128 Kbytes, equivalent to a total chip storage (transmit plus receive) of 64 outstanding packets. The
LAN91C110 is software compatible with the LAN9000 family of products in the default mode and can use existing
LAN9000 drivers (ODI, IPX, and NDIS) with minor modifications in 16 and 32 bit Intel X86 based environments.
Memory management is handled using a unique patented MMU (Memory Management Unit) architecture and an
internal 32-bit wide data path. This I/O mapped architecture can sustain back-to-back frame transmission and
reception for superior data throughput and optimal performance. It also dynamically allocates buffer memory in an
efficient buffer utilization scheme, reducing software tasks and relieving the host CPU from performing these
housekeeping functions. The total memory size is 128 Kbytes (external), equivalent to a total chip storage (transmit
and receive) of 64 outstanding packets.
FEAST provides a flexible slave interface for easy connectivity with industry-standard buses. The host interface is
鈥淚SA-like鈥?and is easily adapted to a wide range of system and CPU buses such as ISA, PCMCIA, etc.
An IEEE-802.3 compliant Media Independent Interface (MII) provided on the network side of the LAN91C110. The MII
interface allows the use of a wide range of MII compliant Physical Layer (PHY) devices to be used with the LAN91C110.
The LAN91C110 also provides an interface to the two-line MII serial management protocol.
SMSC DS 鈥?LAN91C110 REV. B
Page 1
Rev. 09/05/02

LAN91C110TQFP 產(chǎn)品屬性

  • SMSC

  • 以太網(wǎng) IC

  • Ethernet Controllers

  • 1

  • 802.3

  • 10 Mbps, 100 Mbps

  • 5 V

  • 0 V

  • 40 mA

  • + 70 C

  • TQFP-144

  • Reel

  • 10 Base-T, 100 Base-TX

  • 0 C

  • SMD/SMT

  • 300

  • Single Chip MAC and PHY Controller

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