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HDL
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Reinier van der Walle
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· 3ecfb72b
Reinier van der Walle
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2 years ago
libraries/base/dp/src/vhdl/dp_field_blk.vhd
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@@ -36,8 +36,12 @@ USE work.dp_stream_pkg.ALL;
-- . The initial (default) values of the override bits are passed via g_field_sel(one bit per field);
-- . Both the SLV as the override (ovr) fields can be read back via MM;
-- . g_mode can be used to select in which mode dp_field_blk should work. Most of the time, the
-- default g_mode = 0 can be used. Forcing either source or sink mode could be done when the
-- data sosi data length is larger than the field block.
-- default g_mode = 0 can be used. When using g_mode = 0, it is assumed that dp_field_blk must be
-- used in source mode when g_snk_data_w > g_src_data_w, else in sink mode. This is a typical
-- application as it is often the case that the total width of the field block is larger than the
-- serial data width as shown in the example below. There are cases where the width of the
-- field-block is smaller than the serial data words. Therefore it is possible to force either sink
-- or source mode.
-- . g_mode = 0: auto select mode based on g_snk_data_w and g_src_data_w.
-- . g_mode = 1: use dp_field_blk in source mode regardless of g_*_data_w.
-- . g_mode = 2: use dp_field_blk in sink mode regardless of g_*_data_w.
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