The fundamental concepts of UPF development for adopting multi-voltage power gating with retention and other power strategies (such as ISO, LS, and on-chip PSW) on a simple …

A retention strategy is specified in the UPF file, but a retention cell is not present in the design. The retention condition is not asserted when the power domain is powered-down. The …

Retention Cell Details : These cells are special flops with multiple power supply. They are typically used as a shadow register to retain their value even if the block in which they are residing, is …

Preserving state is achieve through the use of UPF retention. Retention: Enhanced functionality associated with selected sequential elements or a memory such that memory values can be …

In this paper, the principle of low power verification is explained in detail. Based on the low power intent in the Unified Power Format (UPF), this paper emphasizes the interaction of the low …

• Retention Strategies −What registered state in a power domain should be retained when its primary power supply is removed. • Level Shifter Strategies −How signals connecting power …

Low Power strategies such as Clock gating, Power gating, Dynamic Voltage and Frequency Scaling (DVFS), Isolation and Retention provide optimal power optimizations to the SoC.

UPF scripts describe which power rails should be routed to individual blocks, when blocks are expected to be powered up or shut down, how voltage levels should be shifted as signals …

Ballon-style retention can be Dual-Pin Retention cell or Single-Pin Retention cell. Master/slave-alive retention is same as Zero-Pin Retention cell.

Verification of low power control signals by leveraging control signal connectivity of typical low-power cells such as isolation, retention, and coarse grain power switch within UPF.