AsyncBundle.md

Rocket/util/AsyncBundle

Unified cross clock-domain queue interface. Utilizing the Chisel2 compatability layer.

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final class AsyncBundle

The unified cross clock-domain queue interface.

final class AsyncBundle[T <: Data](val depth: Int, gen: T) extends Bundle

• I/O, type and Paramter

name	type	direction	description
T	Data	type	payload type
depth	Int	param	size of queue
gen	T	param	type parameter
mem	Vec[T]	U	queue content for sink to read
ridx	UInt	U.flip	read pointer from sink (grey code)
widx	UInt	U	write pointer for source (grey code)
ridx_valid	Bool	U.flip	sink side read pointer valid
widx_valid	Bool	U	source side write pointer valid
source_reset_n	Bool	U	source side reset (active low)
sink_reset_n	Bool	U.flip	sink side reset (active low)

object FromAsyncBundle

Function to convert an AsyncBundle input interface to a DecoupledIO output.

• apply [T <: Data](AsyncBundle[T], sync: Int = 3) => DecoupledIO[T]

object ToAsyncBundle

Function to convert a ReadyValudIO input to an AsyncBundle output.

• apply [T <: Data](ReadyValidIO[T], depth: Int = 8, sync: Int = 3) => AsyncBundle[T]

_{Last updated: 09/07/2017
CC BY-NC-SA 4.0, © (2017) Wei Song
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