Memory mapped I/O bus selection

Details Memory mapped I/O bus selection Memory mapped I/O bus selection

2006-04-18

2010-06-01

Dang, Khanh (Department: 2111)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral configuration

C710S305000, C710S313000

Reexamination Certificate

active

07730227

ABSTRACT:
A mechanism and method for redefining an application specific integrated circuit's I/O bus structure in real-time. The mechanism includes an address map block, a state machine block, and a bus arbitration block. At initialization, the address map is configured to divide the address space into regions and type of bus structure. When an I/O access is requested by a client (e.g., CPU, DMA controller, etc.), the request is mapped into a region and type of bus structure by the address map block. The region and type of bus structure is used by the state machine. The state machine determines the syntax and protocol for the region and type of bus. The state machine signals the bus arbitration block to grant I/O bus ownership when it is available. Once ownership is granted, I/O bus pins are defined and access is granted.

REFERENCES:
patent: 5335338 (1994-08-01), Proesel
patent: 5768598 (1998-06-01), Marisetty et al.
patent: 6188241 (2001-02-01), Gauthier et al.
patent: 6362768 (2002-03-01), Younis et al.
patent: 6460094 (2002-10-01), Hanson et al.
patent: 7206880 (2007-04-01), Brown et al.
How the PCI bus Works, Tech-Pro.
Definition of “State Machine” by Answer.com.
Definition of “State Machine” by Whatis.com.
Definition of “Real Time” by Wikipedia, the free Encyclopedia.

Affiliated with

Also associated with

Rating

Memory mapped I/O bus selection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Memory mapped I/O bus selection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Memory mapped I/O bus selection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4246219