diff --git a/src/avrdude.conf.in b/src/avrdude.conf.in
index 02c29168..9f3a91fc 100644
--- a/src/avrdude.conf.in
+++ b/src/avrdude.conf.in
@@ -4033,6 +4033,10 @@ part parent "t11" # t12
         write              = "1010.1100--1111.1ii1--xxxx.xxxx--xxxx.xxxx";
     ;
 
+    memory "prodsig"
+        read               = "0 0 1 1 a0 0 0 0  0 0 0 0 0 0 0 0  0 0 0 0 a4 a3 a2 a1  o o o o o o o o";
+    ;
+
     memory "signature"
         read               = "0011.0000--xxxx.xxxx--0000.00aa--oooo.oooo";
     ;
@@ -4040,6 +4044,10 @@ part parent "t11" # t12
     memory "calibration"
         read               = "0011.1000--xxxx.xxxx--0000.0000--oooo.oooo";
     ;
+
+    memory "sernum"
+        read               = "0 0 1 1 a0 0 0 0  0 0 0 0 0 0 0 0  0 0 0 0 a4 a3 a2 a1  o o o o o o o o";
+    ;
 ;
 
 #------------------------------------------------------------
@@ -4119,6 +4127,10 @@ part parent "t11" # t15
         write              = "1010.1100--1111.1ii1--xxxx.xxxx--xxxx.xxxx";
     ;
 
+    memory "prodsig"
+        read               = "0 0 1 1 a0 0 0 0  0 0 0 0 0 0 0 0  0 0 0 0 a4 a3 a2 a1  o o o o o o o o";
+    ;
+
     memory "signature"
         read               = "0011.0000--xxxx.xxxx--0000.00aa--oooo.oooo";
     ;
@@ -4126,6 +4138,10 @@ part parent "t11" # t15
     memory "calibration"
         read               = "0011.1000--xxxx.xxxx--0000.0000--oooo.oooo";
     ;
+
+    memory "sernum"
+        read               = "0 0 1 1 a0 0 0 0  0 0 0 0 0 0 0 0  0 0 0 0 a4 a3 a2 a1  o o o o o o o o";
+    ;
 ;
 
 #------------------------------------------------------------