diff --git a/drivers/lcd/ssd1289_lld.c b/drivers/lcd/ssd1289_lld.c
index f9fa0cfd..d1d34310 100644
--- a/drivers/lcd/ssd1289_lld.c
+++ b/drivers/lcd/ssd1289_lld.c
@@ -9,8 +9,10 @@ extern uint16_t lcd_width, lcd_height;
 #ifdef LCD_USE_GPIO
 
 static __inline lld_lcdWriteGPIO(uint16_t d) {
-	LCD_DATA_PORT_1->BSRR = (((~d >> 8) << 16) | (d >> 8) << LCD_DATA_PORT_1_BASE);
-	LCD_DATA_PORT_2->BSRR = (((~d & 0xFF) << 16) | (d & 0xFF) << LCD_DATA_PORT_2_BASE);
+	LCD_DATA_PORT_1->BSRR = ((((~d >> 12 & 0xF) << 16) | (d >> 12 & 0xF)) << LCD_DATA_PORT_1_BASE);
+	LCD_DATA_PORT_2->BSRR = ((((~d >> 8 & 0xF) << 16) | (d >> 8 & 0xF)) << LCD_DATA_PORT_2_BASE);
+	LCD_DATA_PORT_3->BSRR = ((((~d >> 4 & 0xF) << 16) | (d >> 4 & 0xF)) << LCD_DATA_PORT_3_BASE);
+	LCD_DATA_PORT_4->BSRR = ((((~d >> 0 & 0xF) << 16) | (d >> 0 & 0xF)) << LCD_DATA_PORT_4_BASE);
 }	
 
 static __inline void lld_lcdWriteIndex(uint16_t index) {
diff --git a/readme b/readme
index 7840b56a..03c5a9f6 100644
--- a/readme
+++ b/readme
@@ -11,16 +11,24 @@ add the following to your board.h file, matching to your pinconfig:
 	#define TP_CS					6
 
 	#define LCD_DATA_PORT_1			GPIOB
-	#define LCD_DATA_PORT_2			GPIOC
-	#define LCD_DATA_PORT_1_BASE	8
-	#define LCD_DATA_PORT_2_BASE	0
+	#define LCD_DATA_PORT_2			GPIOB
+	#define LCD_DATA_PORT_3			GPIOC
+	#define LCD_DATA_PORT_4			GPIOE
+	#define LCD_DATA_PORT_1_BASE	12
+	#define LCD_DATA_PORT_2_BASE	8
+	#define LCD_DATA_PORT_3_BASE	4
+	#define LCD_DATA_PORT_4_BASE	0	
 	#define LCD_CMD_PORT			GPIOD
 	#define LCD_CS					12
 	#define LCD_RS					13
 	#define LCD_WR					14
 	#define LCD_RD					15
 
-in this example, we use GPIOC[0:7] for DB[0:7] and GPIOB[8:15] for DB[8:15]
+in this example we use the following pin config for 16-bit GPIO interfacing:
+
+	GPIOB 8-15
+	GPIOC 4-7
+	GPIOE 0-3
 
 ### Edit Makefile:
 include lcd.mk: