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Larry Doolittle 2015-10-12 21:45:43 -07:00 committed by Clifford Wolf
parent 11c95920d2
commit f1e096480a
1 changed files with 1 additions and 1 deletions

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@ -143,7 +143,7 @@ RAM tiles are 42 bits wide. (Notice the two slightly smaller columns for the RAM
The IO tiles on the top and bottom of the chip use a strange permutation pattern for their bits. It can be seen in the picture that
their columns are spread out horizontally. What cannot be seen in the picture is the columns also are not in order and the bit
positions are vertically permuted as well. The <span style="font-family:monospace">CramIndexConverter</span> class in <span style="font-family:monospace">icepack.cc</span> encapsulates the calculations
that are neccessary to convert between tile-relative bit addresses and CRAM bank-relative bit addresses.
that are necessary to convert between tile-relative bit addresses and CRAM bank-relative bit addresses.
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