add notes

diff --git a/src/scoreboard/int_fn_unit.py b/src/scoreboard/int_fn_unit.py
index f1f33a3b0899388b3dd2f6f2cc3049bb5b44e884..93f95be3d4313c5910925c7d21088af6f9b4caea 100644 (file)
--- a/src/scoreboard/int_fn_unit.py
+++ b/src/scoreboard/int_fn_unit.py
@@ -7,6 +7,11 @@ from nmigen.lib.coding import Decoder
 
 class IntFnUnit(Elaboratable):
     """ implements 11.4.8 integer function unit, p31
+
+        notes:
+
+        * req_rel_i (request release) is the direct equivalent of pipeline
+                    "output valid"
     """
     def __init__(self, wid):
         self.reg_width = wid