diff --git a/ipsc/ipsc_mask.py b/ipsc/ipsc_mask.py
index d9e104b..e5bcd19 100644
--- a/ipsc/ipsc_mask.py
+++ b/ipsc/ipsc_mask.py
@@ -13,8 +13,10 @@
 #	      .... xx.. = IPSC Slot 1: 10 on, 01 off 
 #	      .... ..xx = IPSC Slot 2: 10 on, 01 off
 #   MASK VALUES:
-PEER_OP_MSK       = 0b11000000
-PEER_MODE_MSK     = 0b00110000
+PEER_OP_MSK       = 0b01000000
+PEER_MODE_MSK    = 0b00110000
+PEER_MODE_ANALOG  = 0b00010000
+PEER_MODE_DIGITAL = 0b00100000
 IPSC_TS1_MSK      = 0b00001100
 IPSC_TS2_MSK      = 0b00000011