Asynchronous transfer mode (ATM) layer function processing apparatus with an enlarged structure
US5812550A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 6, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Dec 6, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5672
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An asynchronous transfer mode (ATM) layer function processing apparatus with an enlarged structure is disclosed including: an ATM layer receiving cell processor for storing a cell start signal and cell input data extracted by use of a cell read clock in a buffer when a cell transmissible signal is received from an input signal of a subscriber physical layer function processor, extracting a flag according to the number of stored cells, and performing a multiplexing operation according to a scheduling algorithm using a cell interrupt signal and the extracted flag; a processor interface for forming a cell from data received from a microprocessor, storing the cell in a buffer, generating the cell interrupt signal, and controlling each constituent of the ATM layer function processing apparatus; an ATM layer transmitting cell processor for performing an input cell routing function according to an output port identifier value when a corresponding routing value and a match signal are generated from a connection table, and performing output cell routing, broadcasting and selective broadcasting functions according to the field allocation of an appropriate output port identifier value; and a …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.