| module | purpose | typical location |
|---|---|---|
| top_wrapper | generated, definition of the cnn architecture | - |
| top | toplevel skeleton, contains (multiple) PE and average pooling | - |
| pe | control all modules of a "layer" | core of the CNN |
| conv_top | control the convolution operation | at the start of each PE |
| conv | perform the convolution operation | part of the convolution |
| mm | perform the matrix multiplication | part of the convolution |
| max_top | control the maximum pooling operation | after convolution, part of the PE |
| pool_max | perform a local maximum pooling operation | part of the maximum pooling |
| window_ctrl | control the stream to window assembly | before convolution and maximum pooling |
| line_buffer | buffer the incoming stream and assemble it to image lines | part of the window control |
| window_buffer | buffer the incoming lines and assemble them to windows | part of the window control |
| channel_repeater | repeat the channels multiple times | before convolution, part of the window control |
| relu | perform the rectified linear operation | after convolution |
| pool_ave | perform a global average pooling operation | at the end of the CNN |
| zero_pad | pad zeros at the image borders | before convolution, part of the PE |