diff --git a/avr/defs.asm b/avr/defs.asm
index 8c6ff27..a91735b 100644
--- a/avr/defs.asm
+++ b/avr/defs.asm
@@ -26,10 +26,18 @@
 ; EEPROM positions
 
 
-.equ EEPROM_OFFS_UUID      = 0    ; 4 bytes (occupy total of 8 bytes for extensibility)
-.equ EEPROM_OFFS_COMADDR   = 8    ; 1 byte (plus one byte reserved)
-.equ EEPROM_OFFS_SEED      = 10   ; 2 bytes
+.equ EEPROM_OFFS_UUID                  = 0    ; 4 bytes (occupy total of 8 bytes for extensibility)
+.equ EEPROM_OFFS_COMADDR               = 8    ; 1 byte (plus one byte reserved)
 
-.equ EEPROM_OFFS_REED_CONF = 12   ; 1 byte (plus one byte reserved)
-; next is 14
+.equ EEPROM_OFFS_SEED                  = 10   ; 2 bytes
+
+.equ EEPROM_OFFS_REED_CONF             = 12   ; 1 byte (plus one byte reserved)
+
+.equ EEPROM_OFFS_MAL_CONF_ONTIME       = 14 ; 2 bytes
+.equ EEPROM_OFFS_MAL_CONF_SRC1_ADDR    = 16 ; 1 byte
+.equ EEPROM_OFFS_MAL_CONF_SRC1_VALUEID = 17 ; 1 byte
+.equ EEPROM_OFFS_MAL_CONF_SRC2_ADDR    = 18 ; 1 byte
+.equ EEPROM_OFFS_MAL_CONF_SRC2_VALUEID = 19 ; 1 byte
+
+; next is 20