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Improving help for lfsr module

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aolofsson 2022-06-29 08:56:11 -04:00
parent 40756aa177
commit 2ae7a67710
1 changed files with 4 additions and 1 deletions
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5
stdlib/rtl/oh_lfsr.v
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@ -9,10 +9,13 @@
* dynamically programming the taps and seed. Shift is from MSB to LSB,
* feedback bit is from LSB.
*
* - The lsfr updates when enable is set to 1.
* - The state is updated when 'en' is high.
*
* - Any non-zero seed value is legal.
*
* - An LSFR of size N can create pseudo random cycles of shorter polynomials
* by zero padding the taps value up to the MSB.
*
* - Driving taps externally is only practical with GALOIS configuration,
* since the massive xor tree would be prohibitive with FIBONACCI.