FDDI controller having flexible buffer management

Details FDDI controller having flexible buffer management FDDI controller having flexible buffer management

1990-05-29

1993-09-21

Chan, Eddie P.

Multiplex communications

Wide area network

Packet switching

395200, 370 851, 364DIG1, 364239, 3642391, 3642645, 3642222, 36424294, G06F 1300, H04L 1200

Patent

active

052476260

ABSTRACT:
A network interface interconnects a processor and a memory residing on a system bus having a predetermined average bus latency to a network containing other processors and memories. The interface, which is implemented using a bus master architecture, includes a network access controller for accessing data on the network, a random access memory, preferably in the form of an SRAM as a buffer between the network and system bus, and a network DMA controller. The Network Access Controller configures the buffer to have at least one logical FIFO for storing data; the size of the logical FIFO is related to the predetermined average bus latency. The DMA controller further controls transfer of data between the system memory and the network through the logical FIFOs. Preferably, the buffer is configured to have (1) a first logical FIFO for storing incoming data from the network and (2) at least one additional logical FIFO for storing outgoing data from said system memory to the network. Frames of data in the buffer are demarked by tag and status bits. The interface has particular utility in an FDDI type local area network.

REFERENCES:
patent: 4914652 (1990-04-01), Nguyen
patent: 4951280 (1990-08-01), McCool et al.
patent: 4958342 (1990-09-01), Williams et al.
patent: 5016221 (1991-05-01), Hamstra
patent: 5058156 (1991-10-01), Dietze

Affiliated with

Also associated with

Rating

FDDI controller having flexible buffer management does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with FDDI controller having flexible buffer management, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FDDI controller having flexible buffer management will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1056772