diff --git a/src/gateware/cxp_frame_pipeline.py b/src/gateware/cxp_frame_pipeline.py
index e2257dc..80b0054 100644
--- a/src/gateware/cxp_frame_pipeline.py
+++ b/src/gateware/cxp_frame_pipeline.py
@@ -719,6 +719,12 @@ class Pixel_Parser(Module):
 
         # # #
 
+        #                                                                            
+        #  32+8(dchar)                                    pixel 4x                    
+        # ----/----> end of line ------> Pixel Gearboxes ----/----> Pixel Coordinate ------> pixel 4x
+        #            inserter                                       Tracker                  w/ coord
+        # 
+         
         self.submodules.eol_inserter = eol_inserter = End_Of_Line_Inserter()
         self.sync += eol_inserter.l_size.eq(self.l_size)
         self.sink = eol_inserter.sink
@@ -767,6 +773,10 @@ class Pixel_Pipeline(Module):
         # NOTE: TapGeo other than 1X-1Y are not supported
         # TODO: match pixel and see whether the it matches the supported ones (via csr perhaps?)
 
+        #  32+8(dchar)                                                      
+        # ----/----> crc checker ------> frame header ------> Pixel Parser ------> pixel 4x
+        #                                decoder                                   w/ coord
+         
         self.submodules.buffer = buffer = Buffer(word_layout_dchar) # to improve timing from broadcaster
         self.submodules.crc_checker = crc_checker = CXPCRC32_Checker()
         self.submodules.header_decoder = header_decoder = Frame_Header_Decoder()