Copyright | (C) 2015-2016 University of Twente 2017 Google Inc. 2019 Myrtle Software Ltd 2022 QBayLogic B.V. |
---|---|
License | BSD2 (see the file LICENSE) |
Maintainer | QBayLogic B.V. <devops@qbaylogic.com> |
Safe Haskell | Trustworthy |
Language | Haskell2010 |
Extensions |
|
ROMs
Synopsis
- rom :: (KnownDomain dom, KnownNat n, NFDataX a, Enum addr) => Clock dom -> Enable dom -> Vec n a -> Signal dom addr -> Signal dom a
- romPow2 :: (KnownDomain dom, KnownNat n, NFDataX a) => Clock dom -> Enable dom -> Vec (2 ^ n) a -> Signal dom (Unsigned n) -> Signal dom a
- rom# :: forall dom n a. (KnownDomain dom, KnownNat n, NFDataX a) => Clock dom -> Enable dom -> Vec n a -> Signal dom Int -> Signal dom a
Synchronous ROM synchronized to an arbitrary clock
:: (KnownDomain dom, KnownNat n, NFDataX a, Enum addr) | |
=> Clock dom |
|
-> Enable dom | Global enable |
-> Vec n a | ROM content, also determines the size, NB: must be a constant |
-> Signal dom addr | Read address |
-> Signal dom a | The value of the ROM at address |
A ROM with a synchronous read port, with space for n
elements
- NB: Read value is delayed by 1 cycle
- NB: Initial output value is undefined, reading it will throw an
XException
Additional helpful information:
- See Clash.Sized.Fixed and Clash.Explicit.BlockRam for ideas on how to use ROMs and RAMs
:: (KnownDomain dom, KnownNat n, NFDataX a) | |
=> Clock dom |
|
-> Enable dom | Global enable |
-> Vec (2 ^ n) a | ROM content NB: must be a constant |
-> Signal dom (Unsigned n) | Read address |
-> Signal dom a | The value of the ROM at address |
A ROM with a synchronous read port, with space for 2^n
elements
- NB: Read value is delayed by 1 cycle
- NB: Initial output value is undefined, reading it will throw an
XException
Additional helpful information:
- See Clash.Sized.Fixed and Clash.Explicit.BlockRam for ideas on how to use ROMs and RAMs
Internal
:: forall dom n a. (KnownDomain dom, KnownNat n, NFDataX a) | |
=> Clock dom |
|
-> Enable dom | Global enable |
-> Vec n a | ROM content, also determines the size, NB: must be a constant |
-> Signal dom Int | Read address |
-> Signal dom a | The value of the ROM at address |
ROM primitive