US 8,949,644 B2 · HSIC communication system and method

Abstract

A High Speed Inter Chip (HSIC) system and method for minimizing power consumption by controlling the state of the HSIC module through a control line are provided. The method between a host and a slave includes transitioning, when no communication request exists for a first reference time in an active state where all functions of the HSIC modules are enabled, to a suspend state where least functions used for maintaining a communication link of the HSIC modules and transitioning, when no communication request exists for a second reference time in the suspend state, to a power-off state where the HSIC modules turn off The HSIC communication method and apparatus are advantageous to minimize the electric current consumption of the HSIC consumption system.

Claims18

Dependent claims

An electronic device comprising:

a host comprising a first communication module for communication;
a slave comprising a second communication module for communication;
and
wherein the host comprises:
a slave wakeup line to transmit to the slave a signal for an activation request of the second communication module, and
a host active line to transmit to the slave a signal to turn on/off the second communication module;
and
wherein the slave comprises:
a host wakeup line to transmit to the host a signal for an activation request of the first communication module.

6 more elements

A communication method between a host and a slave, the method comprising:

transmitting, when the host detects a communication request to the slave while a first communication module included in the host and a second communication module included in the slave are in a power-off state, to the slave a signal for an activation request of the second communication module via a slave wakeup line;
transmitting by the slave to the host a signal for an activation request for the first communication module via a host wakeup line as a response to the signal for the activation request for the second communication module;
turning on the first communication module by the host as the response to the signal for an activation request for the first communication module;
and
turning on the second communication module by transmitting to the slave a signal for a power-on request for the second communication module via a host active line.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/428,298Filed 23 Mar 2012

Priority

KR 10-2011-002566523 Mar 2011

Published

US 2012/0246505 A127 Sep 2012

Granted

3 Feb 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

G06F 1/00
Details not covered by groups g06f3/00 - g06f13/00 and g06f21/00
G06F 1/3293
Power saving characterised by the action undertaken: by switching to a less power-consuming processor, e.g. sub-CPU
G06F 1/3203
Means for saving power: power management, i.e. event-based initiation of a power-saving mode
G06F 1/3228
Monitoring of events, devices or parameters that trigger a change in power modality: monitoring task completion, e.g. by use of idle timers, stop…

HSIC communication system and method

Life of this patent

HSIC communication system and method

Life of this patent

Abstract

Claims18