Mediatek Corporation

Tai-Ying Jiang

Bo-Yun Lin

Ching-Yao Huang

Hui-Hsuan Wang

Ko-Ching Su

Fan-Wei Liao

Szu-Ying Cheng

Chun-Fang Peng

Chun-Yueh Kuo

Jien-Jia Su

Fumin Huang

A semiconductor die includes an on-die power switch and a target device. The on-die power switch includes a plurality of power input nodes, a power output node, and a switch circuit. The power input nodes receive a plurality of operation voltages from a plurality of different power sources, respectively. The power output node outputs a target operation voltage selected from the operation voltages. The switch circuit selectively couples one of the power input nodes to the power output node. The target device operates according to the target operation voltage supplied from the on-die power switch. The on-die power switch and the target device are separate circuit blocks of the semiconductor die.

Semiconductor die having on-die power switch for selecting target operation voltage from operation voltages provided by different power sources

A method for saving power is provided. The method is used in a slave device. The method includes receiving a first system power management interface (SPMI) write command from an external device via a SPMI bus when the slave device is in sleep mode. The method includes turning on a system clock in response to the first SPMI write command indicating to turn on the system clock. The method includes allowing the external device to access the slave device.

Method and device for saving power

One or more values associated with a first configuration setting for a first circuit may be stored in a first set of one or more registers when an operation of the first circuit is based at least in part on one or more values associated with a second configuration setting stored in a second set of one or more registers. In response to receiving an indication of a change in an operating frequency or voltage of the first circuit, the one or more values stored in the second set of one or more registers may be changed by loading the one or more values associated with the first configuration setting stored in the first set of one or more registers into the second set of one or more registers in a parallel fashion.

Hardware-accelerated dynamic voltage and frequency scaling

Growing community of inventors

Hsinchu, Taiwan

Tai-Ying Jiang