diff --git a/README.txt b/README.txt index 0c3807a..a1b917e 100644 --- a/README.txt +++ b/README.txt @@ -105,7 +105,8 @@ These two wrappers are the only tested variants of the core. Accuracy of the sine/cosine output from the cores has been determined from a simulation of the VHDL code on all possible phase input values. ----- +-- + Core variant sincos_gen_d18_p20 sincos_gen_d24_p26 Phase input width 20 bits 26 bits Sin/cos output width 18 bits 24 bits @@ -122,10 +123,27 @@ Spurious-free dynamic range 129.81 dB cos(x) == sin(x+pi/2) exact match sin(x) == - sin(x+pi) exact match ----- + +-- FPGA resources -------------- +-- + +FPGA type Xilinx Spartan-6 LX45-3 +Synthesizer Xilinx ISE 14.7 + +Core variant d18_p20 d24_p26 + +Flip-flops 134 250 +LUTs 136 211 +RAMB16BWER 2 2 +RAMB8BWER 0 2 +DSP48A1 2 4 + +Clock freq 230 MHz 230 MHz + +--