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:
Sep. 15, 2020

Filed:

Jul. 10, 2018
Applicant:

Arm Limited, Cambridge, GB;

Inventors:

Richard Andrew Paterson, Thurgoland, GB;

Christopher Vincent Severino, Haverhill, GB;

Dominic William Brown, Ely, GB;

Seow Chuan Lim, Letchworth Garden, GB;

Csaba Kelemen, Gyor, HU;

Gergely Kiss, Budapest, HU;

Assignee:

ARM Limited, Cambridge, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/00 (2006.01); G06F 1/24 (2006.01); H03K 19/00 (2006.01); G06F 1/3287 (2019.01);
U.S. Cl.
CPC ...
G06F 1/24 (2013.01); G06F 1/3287 (2013.01); H03K 19/0016 (2013.01);
Abstract

An integrated circuit () has first and second domains (). The first domain has a power controller () to control the power state of at least one device () in the second domain based on power management signals exchanged on a power management channel () between the first and second domains A reset isolation bridge () is provided on the power management channel () between the first and second domains (). The bridge () has first and second interfaces () to exchange the power management signals with the first and second domains respectively. Isolating circuitry () is provided in the bridge () to respond to a reset indication () indicating reset of one of the first and second domains, to isolate state transitions of the power management signals at the first and second interfaces () from each other.


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