user fault indicator specified

diff --git a/cebpic/README.circuitry b/cebpic/README.circuitry
index f1230602dddb9ea442043b2e9abafc6d52c67b43..6ed7775a3973b91f6934a9396cd45d5cbfefb011 100644 (file)
--- a/cebpic/README.circuitry
+++ b/cebpic/README.circuitry
@@ -96,8 +96,6 @@ the `apply track power' instruction, or similar.)
 User Fault Indicator
 --------------------
 
-*** PROVISIONAL ***
-
 The User Fault Indicator output controls, directly, the green segment
 of the `track power' tri-colour indicator LED.  This segment should be
 lit by the PIC whenever an overload has been detected and the fault
@@ -107,6 +105,10 @@ When a fault is present, the PIC should occasionally attempt to
 reapply track power, so that it can indicate to the user when the
 fault has been fixed.
 
+   Output pin     Green segment
+      H                      off
+      Z                      off
+      L                      ON
 
 
 SERIAL PORT