diff --git a/utility/mcufriend_special.h b/utility/mcufriend_special.h
index c114912..7985b07 100644
--- a/utility/mcufriend_special.h
+++ b/utility/mcufriend_special.h
@@ -5,6 +5,7 @@
 //#define USE_MEGA_16BIT_SHIELD     // 2.14sec Mega2560 Shield 
 //#define USE_BLD_BST_MEGA32U4
 //#define USE_BLD_BST_MEGA2560      // 12.23sec Uno Shield (17.38s C)
+//#define USE_BLD_BST_MEGA4809      // 5.43sec XPRO-Adapter (7.09s C)
 //#define USE_DUE_8BIT_PROTOSHIELD
 //#define USE_DUE_16BIT_SHIELD        //RD on PA15 (D24) 
 //#define USE_BOBCACHELOT_TEENSY
@@ -93,6 +94,117 @@ ST7789V  tWC = 66ns  tWRH = 15ns  tRCFM = 450ns  tRC = 160ns
 #define PIN_HIGH(p, b)       (p).OUT |= (1<<(b))
 #define PIN_OUTPUT(p, b)     (p).DIR |= (1<<(b))
 
+//################################# XPRO-4809 with XPRO-Shield_Adapter ############################
+#elif defined(__AVR_ATmega4809__) && !defined(USE_BLD_BST_MEGA4809)   // XPRO-4809 with XPRO-Shield_Adapter
+#warning XPRO-4809 with XPRO-Shield_Adapter using PORT.OUTSET
+#define RD_PORT PORTD  //
+#define RD_PIN  2
+#define WR_PORT PORTD
+#define WR_PIN  3
+#define CD_PORT PORTD
+#define CD_PIN  4
+#define CS_PORT PORTD
+#define CS_PIN  5
+#define RESET_PORT PORTC
+#define RESET_PIN  2
+
+// PORT.OUTSET is fast but still 2 cycles.    Hence all those RD_ACTIVEs
+#define AMASK         (3<<2)
+#define BMASK         (3<<2)
+#define CMASK         (3<<6)
+#define EMASK         (1<<1)
+#define FMASK         (1<<6)
+#define write_8(x)   {   \
+                        PORTA.OUTCLR = AMASK; PORTA.OUTSET = (((x) & (3<<0)) << 2); \
+                        PORTB.OUTCLR = BMASK; PORTB.OUTSET = (((x) & (1<<2))) | (((x) & (1<<6)) >> 3); \
+                        PORTC.OUTCLR = CMASK; PORTC.OUTSET = (((x) & (3<<3)) << 3); \
+                        PORTE.OUTCLR = EMASK; PORTE.OUTSET = (((x) & (1<<7)) >> 6); \
+                        PORTF.OUTCLR = FMASK; PORTF.OUTSET = (((x) & (1<<5)) << 1); \
+					 }
+#define read_8()      ( ((PORTA.IN & AMASK) >> 2)\
+| ((PORTB.IN & (1<<2)) >> 0)\
+| ((PORTB.IN & (1<<3)) << 3)\
+| ((PORTC.IN & CMASK) >> 3)\
+| ((PORTE.IN & EMASK) << 6)\
+| ((PORTF.IN & FMASK) >> 1)\
+)
+#define setWriteDir() { PORTA.DIRSET = AMASK; PORTB.DIRSET = BMASK; PORTC.DIRSET = CMASK; PORTE.DIRSET = EMASK; PORTF.DIRSET = FMASK; }
+#define setReadDir()  { PORTA.DIRCLR = AMASK; PORTB.DIRCLR = BMASK; PORTC.DIRCLR = CMASK; PORTE.DIRCLR = EMASK; PORTF.DIRCLR = FMASK; }
+
+#define WRITE_DELAY   { WR_ACTIVE2; WR_ACTIVE; }   //-Os=7.09s @20MHz (-O1=8.13s, -O3=6.03s)
+#define READ_DELAY    { RD_ACTIVE2; }              //ID=0x7789
+#define write8(x)     { write_8(x); WRITE_DELAY; WR_STROBE; }
+#define write16(x)    { uint8_t h = (x)>>8, l = x; write8(h); write8(l); }
+#define READ_8(dst)   { RD_STROBE; READ_DELAY; dst = read_8(); RD_IDLE; }
+#define READ_16(dst)  { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); }
+
+#define PIN_LOW(p, b)        (p).OUTCLR = (1<<(b))
+#define PIN_HIGH(p, b)       (p).OUTSET = (1<<(b))
+#define PIN_OUTPUT(p, b)     (p).DIRSET = (1<<(b))
+
+#elif defined(__AVR_ATmega4809__) && defined(USE_BLD_BST_MEGA4809)   // XPRO-4809 with XPRO-Shield_Adapter
+#warning XPRO-4809 with XPRO-Shield_Adapter using VPORT.OUT and BLD/BST
+#define RD_PORT VPORTD  //
+#define RD_PIN  2
+#define WR_PORT VPORTD
+#define WR_PIN  3
+#define CD_PORT VPORTD
+#define CD_PIN  4
+#define CS_PORT VPORTD
+#define CS_PIN  5
+#define RESET_PORT VPORTC
+#define RESET_PIN  2
+
+#define AMASK         (3<<2)
+#define BMASK         (3<<2)
+#define CMASK         (3<<6)
+#define EMASK         (1<<1)
+#define FMASK         (1<<6)
+static __attribute((always_inline))
+ void write_8(uint8_t val)
+{
+	asm volatile("in __tmp_reg__,0x01" "\n\t"    //VPORTA.OUT
+	"BST %0,0" "\n\t" "BLD __tmp_reg__,2" "\n\t"
+	"BST %0,1" "\n\t" "BLD __tmp_reg__,3" "\n\t"
+	"out 0x01,__tmp_reg__" : : "a" (val));
+	asm volatile("in __tmp_reg__,0x05" "\n\t"    //VPORTB.OUT
+	"BST %0,2" "\n\t" "BLD __tmp_reg__,2" "\n\t"
+	"BST %0,6" "\n\t" "BLD __tmp_reg__,3" "\n\t"
+	"out 0x05,__tmp_reg__" : : "a" (val));
+	asm volatile("in __tmp_reg__,0x09" "\n\t"    //VPORTC.OUT
+	"BST %0,3" "\n\t" "BLD __tmp_reg__,6" "\n\t"
+	"BST %0,4" "\n\t" "BLD __tmp_reg__,7" "\n\t"
+	"out 0x09,__tmp_reg__" : : "a" (val));
+	asm volatile("in __tmp_reg__,0x11" "\n\t"    //VPORTE.OUT
+	"BST %0,7" "\n\t" "BLD __tmp_reg__,1" "\n\t"
+	"out 0x11,__tmp_reg__" : : "a" (val));
+	asm volatile("in __tmp_reg__,0x15" "\n\t"    //VPORTF.OUT
+	"BST %0,5" "\n\t" "BLD __tmp_reg__,6" "\n\t"
+	"out 0x15,__tmp_reg__" : : "a" (val));
+}
+
+#define read_8()      ( ((VPORTA_IN & AMASK) >> 2)\
+| ((VPORTB_IN & (1<<2)) >> 0)\
+| ((VPORTB_IN & (1<<3)) << 3)\
+| ((VPORTC_IN & CMASK) >> 3)\
+| ((VPORTE_IN & EMASK) << 6)\
+| ((VPORTF_IN & FMASK) >> 1)\
+)
+#define setWriteDir() { VPORTA_DIR |=  AMASK; VPORTB_DIR |=  BMASK; VPORTC_DIR |=  CMASK; VPORTE_DIR |=  EMASK; VPORTF_DIR |=  FMASK; }
+#define setReadDir()  { VPORTA_DIR &= ~AMASK; VPORTB_DIR &= ~BMASK; VPORTC_DIR &= ~CMASK; VPORTE_DIR &= ~EMASK; VPORTF_DIR &= ~FMASK; }
+
+//#define WRITE_DELAY   { WR_ACTIVE; WR_ACTIVE; }   //6.47s no_inline
+#define WRITE_DELAY   { WR_ACTIVE2; WR_ACTIVE; }   //-Os=5.43s @20MHz always_inline. (-O1=5.41s, -O3=5.25s) 
+#define READ_DELAY    { RD_ACTIVE4; }              //ID=0x7789
+#define write8(x)     { write_8(x); WRITE_DELAY; WR_STROBE; }
+#define write16(x)    { uint8_t h = (x)>>8, l = x; write8(h); write8(l); }
+#define READ_8(dst)   { RD_STROBE; READ_DELAY; dst = read_8(); RD_IDLE; }
+#define READ_16(dst)  { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); }
+
+#define PIN_LOW(p, b)        (p).OUT &= ~(1<<(b))
+#define PIN_HIGH(p, b)       (p).OUT |= (1<<(b))
+#define PIN_OUTPUT(p, b)     (p).DIR |= (1<<(b))
+
 #elif defined(__AVR_ATmega328P__) && defined(USE_OPENSMART_SHIELD_PINOUT_UNO)
 #define RD_PORT PORTC
 #define RD_PIN  0