Sundance FC100 v.2.3 - Manual (Page 17)

FC100 - Floating Point Fast Fourier Transform
v2.3
Fast Fourier Transform product manual
October 2005 www.sundance.com - 17 -
Halted processing between two consecutive passes
Figure 7 : empty_pipeline high
When the empty_pipeline signal is driven high, the core will pause the processing
between two consecutive passes in order to empty the data pipeline. As shown on the
waveform above, a new pass is started only when all the data from the previous pass have
been processed through the core and written to memory. This mode should be used when
the data processing memory banks are single port.