DescriptionQ416
Q416DesignAppleASIC interview problem
Capture a held multi-bit power-state value across clocks
TechniquesCDC & RDCCDC / RDCcapture a held multi-bit power-state value across clocks
DifficultyEasy
TopicCDC & RDC
LanguageSystemVerilog
Format4 choices
01
Problem
A source clock domain changes a four-bit power-state value, asserts request, and promises to hold the value until an acknowledgement returns from the destination. Which destination-side scheme transfers one coherent value without synchronizing the four data bits independently?
02
