LPC1788 8bpp LCD Interfacing

[jtronix]

i want to interface LCD in 8bpp 332 mode.

anybody know connection diagram of LCD with uC?
which port no. are use for same.

also share 323 mode connection diagram

 

[jtronix]

if i configured segger for 16bit 565 color conversion mode then it takes more time to update LCD then 8 bit LCD driver.
update time of 8bit is 80% faster than 16bit so i want to interface LCD in 8bit 332 (RGB mode) only.

Segger configuration:
16 bit configuration:
#define COLOR_CONVERSION GUICC_565
#define DISPLAY_DRIVER GUIDRV_LIN_16

8 bit configuration:
#define COLOR_CONVERSION GUICC_332
#define DISPLAY_DRIVER GUIDRV_LIN_8

Result:
Sr No | Segger config | LCD Config | Conclusion
1 | 16bpp | 16 bpp | display properly but update time is too slow
2 | 8bpp | 16 bpp | not display proper shown in attach image (8bpp) but update time is better
3 | 8bpp | 8 bpp | display blank only backlight turns ON

attach image :
A,b -> display two times
c --> display junk data

in 2nd case image is drawn twice and scale by 4 but it should display as shown in attach image(expected).

which pins are use for 8bit 332 RGB mode??? in datasheet they have only mention 12,16,24 bit pin assignment
please share schematic of same