#define SJA_SIGNAL sig_INTERRUPT7
#define SJA_EICR EICRB
#define SJA_SIGNAL_BIT 7
#define LCD_4x20
#define LCD_DATA_PORT PORTB
#define LCD_DATA_DDR DDRB
#define LCD_DATA_BITS 0xFF
#define LCD_DATA_PIN PINB
#define LCD_ENABLE_PORT PORTE
#define LCD_ENABLE_DDR DDRE
#define LCD_ENABLE_BIT 2
#define LCD_RW_PORT PORTE
#define LCD_RW_DDR DDRE
#define LCD_RW_BIT 1
#define LCD_REGSEL_PORT PORTE
#define LCD_REGSEL_DDR DDRE
#define LCD_REGSEL_BIT 0