From 17070c64051be66fa519fbeb9e77abf8e416b7db Mon Sep 17 00:00:00 2001 From: tangxifan Date: Wed, 25 Nov 2020 22:19:20 -0700 Subject: [PATCH] [Doc] Update README in openfpga arch directory for native fracturable LUT design --- openfpga_flow/openfpga_arch/README.md | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/openfpga_flow/openfpga_arch/README.md b/openfpga_flow/openfpga_arch/README.md index 2e5dede96..ba6e307ca 100644 --- a/openfpga_flow/openfpga_arch/README.md +++ b/openfpga_flow/openfpga_arch/README.md @@ -2,8 +2,9 @@ Please reveal the following architecture features in the names to help quickly spot architecture files. Note that an OpenFPGA architecture can be applied to multiple VPR architecture files. -- k: Look-Up Table (LUT) size of FPGA. If you have fracturable LUTs or multiple LUT circuits, this should be largest input size. -- frac: If fracturable LUT is used or not. +- k\_: Look-Up Table (LUT) size of FPGA. If you have fracturable LUTs or multiple LUT circuits, this should be largest input size. + * The keyword 'frac' is to specify if fracturable LUT is used or not. + * The keyword 'Native' is to specify if fracturable LUT design is a native one (without mode switch) or a standard one (with mode switch). - N: Number of logic elements for a CLB. If you have multiple CLB architectures, this should be largest number. - adder\_chain: If hard adder/carry chain is used inside CLBs - register\_chain: If shift register chain is used inside CLBs