commit
a44fff5d93
@ -165,7 +165,7 @@ final class TLBundleD(params: TLBundleParameters)
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final class TLBundleE(params: TLBundleParameters)
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extends TLBundleBase(params) with TLChannel
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{
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val sink = UInt(width = params.sourceBits) // to
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val sink = UInt(width = params.sinkBits) // to
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}
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class TLBundle(params: TLBundleParameters) extends TLBundleBase(params)
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@ -56,7 +56,7 @@ object RegWriteFn
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})
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// write to a DecoupledIO (only safe if there is a consistent sink draining data)
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implicit def apply(x: DecoupledIO[UInt]): RegWriteFn = RegWriteFn((valid, data) => { x.valid := valid; x.bits := data; x.ready })
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// updates a register
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// updates a register (or adds a mux to a wire)
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implicit def apply(x: UInt): RegWriteFn = RegWriteFn((valid, data) => { when (valid) { x := data }; Bool(true) })
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// noop
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implicit def apply(x: Unit): RegWriteFn = RegWriteFn((valid, data) => { Bool(true) })
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@ -73,8 +73,14 @@ object RegField
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type Map = (Int, Seq[RegField])
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def apply(n: Int) : RegField = apply(n, (), ())
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def apply(n: Int, rw: UInt) : RegField = apply(n, rw, rw)
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def R(n: Int, r: RegReadFn) : RegField = apply(n, r, ())
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def W(n: Int, w: RegWriteFn) : RegField = apply(n, (), w)
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def r(n: Int, r: RegReadFn) : RegField = apply(n, r, ())
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def w(n: Int, w: RegWriteFn) : RegField = apply(n, (), w)
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// This RegField allows 'set' to set bits in 'reg'.
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// and to clear bits when the bus writes bits of value 1.
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// Setting takes priority over clearing.
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def w1ToClear(n: Int, reg: UInt, set: UInt): RegField =
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RegField(n, reg, RegWriteFn((valid, data) => { reg := ~(~reg | Mux(valid, data, UInt(0))) | set; Bool(true) }))
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}
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trait HasRegMap
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