05101477 is referenced by 22 patents and cites 15 patents.

A data transfer apparatus for use in transferring data frames between a data buffer and an input/out (I/O) device in a data processing system. A channel in the data processing system includes an inbound frame header buffer for storing a header from an inbound data frame from the I/O device, an outbound frame header buffer for building a header for an outbound data frame to be sent to the I/O device, a data buffer for storing data transmitted between the data processing system and the I/O device, and a data transfer control circuit for controlling the number of data bytes to be transferred between the data buffer and the I/O device. The channel also includes a microcode routine controlled microprocessor for analyzing frame headers in the inbound frame header buffer, for building frame headers in the outbound frame header buffer, for initiating the transmission of outbound frames, and for controlling the data transfer control circuit for transferring a desired number of data bytes.

Title
System for high speed transfer of data frames between a channel and an input/output device with request and backup request count registers
Application Number
7/481071
Publication Number
5101477
Application Date
February 16, 1990
Publication Date
March 31, 1992
Inventor
Matthew J Kalos
Tucson
AZ, US
Catherine C Huang
Poughkeepsie
NY, US
Thomas A Gregg
Highland
NY, US
John R Flanagan
Staatsburg
NY, US
Daniel F Casper
Poughkeepsie
NY, US
Agent
Floyd A Gonzalez
Assignee
International Business Machines
NY, US
IPC
G06F 7/06
View Original Source