diff --git a/avr/devices/n25/defs.asm b/avr/devices/n25/defs.asm
index 093348b..1ad3575 100644
--- a/avr/devices/n25/defs.asm
+++ b/avr/devices/n25/defs.asm
@@ -17,7 +17,7 @@
 ;                            PB3  4     11  PA2         
 ;                            PB2  5     10  PA3  LED
 ;                  COM_ATTN  PA7  6      9  PA4  LED_CLK
-;                  LED_DATA  PA6  7      8  PA5
+;                  LED_DATA  PA6  7      8  PA5  LED_Mode (0 for SPI)
 ;                                 --------
 ;
 ; ***************************************************************************
@@ -80,6 +80,16 @@
 .equ OWI_PINNUM  = PORTB0
 
 
+
+; ---------------------------------------------------------------------------
+; LED mode pin
+
+.equ LED_MODE_DDR     = DDRA
+.equ LED_MODE_PORTOUT = PORTA
+.equ LED_MODE_PORTIN  = PINA
+.equ LED_MODE_PINNUM  = PORTA5
+
+
 ; ---------------------------------------------------------------------------
 ; SK6812