The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 29, 2004

Filed:

Sep. 26, 2001
Applicant:
Inventor:

Keith Balmer, Bedford, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/312 ;
U.S. Cl.
CPC ...
G06F 1/312 ;
Abstract

The method maps at least one intermediate data register of a first data width into the address space of the computer bus. The computer bus writes data to an intermediate data registers with write strobes corresponding to data subsets of a second smaller data width equal to the data width of the device registers. The IDE controller then transfers data from the intermediate data register to the device registers in subsets of the device register data width in a fixed order of device registers. Similarly, for reads of the device register, the computer bus writes data to a read selection data field of an intermediate data register. Each bit of the read selection data field corresponding to one device register. The IDE controller transfers data from the device registers corresponding to bits of the read selection data field having a predetermined first digital state to an intermediate data register in a fixed read order of device registers.


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