CLICK - The universal solution of power gating for the whole SoC
Overview
TSMC 55 LP, CLICK, power gating cells to create a ring of switches in order to ease the integration of hard macro and provide automatic control of in-rush current during wake-up.
Key Features
- Flexibility of in-rush current and wake-up time management
- Allows a smart control of the trade-off between wake-up time and in-rush current
- Automated wake-up sequence including isolation and retention signal management
- Programmable limitation of in-rush current controlled by Transition Ramp Controller (TRC) enables a ?correct-by-construction? implementation
- The flexibility to easily adjust in-rush current and/or minimize wake up time before and after fabrication (no need for iterative and complex simulation)
- Ease of integration thanks to a universal solution
- One power gating solution at SoC level
- Enables easy integration of hard macros and the implementation of power gating on blocks designed with any library from any provider (e.g. 12T free library)
- Methodology for an automatic computation of the ring with optimal number and size of power switches
- Script for automatic and optimized power ring insertion for polygonal islands
- Anticipate IR-Drop, load current and in-rush budgets at early stage thanks to Abacus
- Simplify your design thanks to ring style implementation
- Allows power gating without aggravating an already congested design
- Ring style is more flexible to deal with global IR-Drop optimization over the design implementation even though Grid style is more flexible than Ring style for local IR-Drop optimization
- Allows to modify/optimize the ring to reach a better IR-Drop or a lower leakage without re-routing the block
- Specific power switches for ring implementation with built-in command signals and power supply routing
- Power leakage optimized
- Up to 99.9% power leakage savings at SoC level (only switch leakage)
- Optimized management of the IR-Drop vs. leakage trade-off thanks to the abacus
- Dedicated documentation
- Dedicated Application Notes to complete the standard LP flow
Technical Specifications
Maturity
Pre-silicon
TSMC
Pre-Silicon:
55nm
LP
Related IPs
- CLICK - The universal solution of power gating for the whole SoC
- CLICK - The universal solution of power gating for the whole SoC
- CLICK - The universal solution of power gating for the whole SoC
- CLICK - The universal solution of power gating for the whole SoC
- CLICK - The universal solution of power gating for the whole SoC
- CLICK - The universal solution of power gating for the whole SoC