Power Domain

Low Power Design: Isolation Cell

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Low Power Design: Isolation Cell

In multi-voltage design, isolation cells are often used. This article briefly introduces what an iso cell is, how to use an iso cell, when to add an iso cell, and the insertion position of the iso cell. 1. What is an iso cell? An isolation cell, typically used in Power Shutdown (PSO) and Multi-Supply Multi-Voltage … Read more

Low Power Design | Isolation Cell

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Low Power Design | Isolation Cell

In multi-voltage design, isolation cells are often used; this article briefly introduces what an iso cell is, how to use an iso cell, when to add an iso cell, and the insertion location of the iso cell. 1. What is an iso cell? Isolation cell (隔离单元) is typically used in power shutdown technology (PSO) and … Read more

How to Build a WIFI Chip SoC Architecture?

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How to Build a WIFI Chip SoC Architecture?

In a previous article, we briefly analyzed the architecture of MCU chips.Analysis of MCU chip system architectureIn fact, most WIFI chips can be considered as MCU chips, so the SoC architecture of WIFI chips is basically the same as that of MCU chips, which includes the CPU, bus, peripherals, and of course, the WIFI IP … Read more

ARMv9/v8 Power Management Domains (Voltage Domain/Power Domain)

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ARMv9/v8 Power Management Domains (Voltage Domain/Power Domain)

ver0.2 Introduction In previous articles, we briefly introduced the Power Control Framework (PCF) and understood the main functions of its core components, which revolve around two key concepts: “power domains” and “power modes”. Building on this foundation, this article will further explore the concept of granular “domains” controlled by the SCP for various agents. Modern … Read more

Low Power Design – Power Switch (2) Adding Switch to the Top Level Block

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Low Power Design - Power Switch (2) Adding Switch to the Top Level Block

Classification and application of power switches: Low Power Design – Power Switch In a recent project, with tight deadlines, we ran two versions, differing in whether to use UPF. The block is implemented normally, and the switch is added at the top level. ​1. UPF First, let’s analyze the UPF content related to the power … Read more

Low Power Design Techniques – Multi VDD

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Low Power Design Techniques - Multi VDD

Half Dimension – w Mu Xiaojiu w Low Power Design Techniques – Multi VDD Dynamic power consumption is proportional to the square of the voltage; therefore, reducing the supply voltage is very effective in lowering dynamic power consumption. The principle of multi-supply voltage is shown in the figure below. For certain modules in the design, … Read more