The cards come in isa and pci versions and are made

This preview shows page 8 - 16 out of 27 pages.

The cards come in ISA and PCI versions and are made by companies like 3Com and LinkSys
Image of page 8

Subscribe to view the full document.

SUSHMA RAWAL 9 NIC The card implements the electronic circuitry required to communicate using a specific physical layer and data link layer standard such as Ethernet or token ring. This provides a base for a full network protocol stack, allowing communication among small groups of computers on the same LAN and large- scale network communications through routable protocols, such as IP.
Image of page 9
SUSHMA RAWAL 10 NIC There are four techniques used to transfer data, the NIC may use one or more of these techniques. Polling is where the microprocessor examines the status of the peripheral under program control. Programmed I/O is where the microprocessor alerts the designated peripheral by applying its address to the system's address bus. Interrupt-driven I/O is where the peripheral alerts the microprocessor that it's ready to transfer data. DMA is where an intelligent peripheral assumes control of the system bus to access memory directly. This removes load from the CPU but requires a separate processor on the card.
Image of page 10

Subscribe to view the full document.

SUSHMA RAWAL 11 NIC NIC may be an embedded component as part of a computer motherboard, a router, expansion card, printer interface or a USB device.
Image of page 11
SUSHMA RAWAL 12 NIC NICs can have one of five basic bus standards for internal connection to the PC: PCI, ISA, EISA, MCA, or PCMCIA
Image of page 12

Subscribe to view the full document.

SUSHMA RAWAL 13 NIC Network interface cards are either wired (LAN) or wireless. Most NICs use network drivers, which are computer programs that allow software applications to communicate with network hardware. The necessary drivers are usually integrated into the computer system
Image of page 13
SUSHMA RAWAL 14 Transmit P C I I/ F Tx FIFO Rx FIFO Tx/Rx Logic INTERRUPT LOGIC & REG Pkt Disc
Image of page 14

Subscribe to view the full document.

SUSHMA RAWAL 15 Transmission Network kernel indicates pkt ready.
Image of page 15
Image of page 16
  • Spring '12
  • kavitha
  • Network Interface Card, SUSHMA RAWAL

{[ snackBarMessage ]}

Get FREE access by uploading your study materials

Upload your study materials now and get free access to over 25 million documents.

Upload now for FREE access Or pay now for instant access
Christopher Reinemann
"Before using Course Hero my grade was at 78%. By the end of the semester my grade was at 90%. I could not have done it without all the class material I found."
— Christopher R., University of Rhode Island '15, Course Hero Intern

Ask a question for free

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern