04831520 is referenced by 107 patents and cites 1 patents.

A processor for use in a digital data processing system includes a bus interface circuit for transferring data to and from other units in the system and for controlling the transfer of information within the processor over an internal bus. The bus interface circuit includes two state machines, one for controlling the internal transfers of information, and the other for controlling the external transfers of information. The state machines communicate through flags which indicate when external operations are pending. A plurality of latches are provided to receive write data, a write address and a read address from other portions of the processor, and an input latch receives signals from other units in the system, thereby allowing both a wire operation and a read operation to be initiated at the same time. The processor continues operating unless another operation is required.

Title
Bus interface circuit for digital data processor
Application Number
7/17647
Publication Number
4831520
Application Date
February 24, 1987
Publication Date
May 16, 1989
Inventor
Anil K Jain
Stow
MA, US
Paul I Rubinfeld
Wayland
MA, US
Agent
Fish & Richardson
Assignee
Digital Equipment Corporation
MA, US
IPC
G06F 3/00
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