Counters.md

Rocket/util/Counters

Counters. Utilizing the Chisel2 compatability layer.

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object TwoWayCounter

A two way counter

• apply (up: Bool, down: Bool, max: Int) => UInt
  Count up when up && !down, down when down && !up, width of output is log2Up(max+1).

case class WideCounter

a counter that clock gates most of its MSBs using the LSB carry-out

case class WideCounter(width: Int, inc: UInt = UInt(1), reset: Boolean = true)

• width Int the width of the counter.
• inc UInt the increment value.
• reset Boolean reset to 0.
• value UInt the counter value.
• := (x: UInt) => Unit set counter value to x.

_{Last updated: 09/07/2017
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