HX8347 - Adafruit

HX8347-G(T)240RGB x 320 dot, 262K color, TFT Mobile Single Chip Driver5.2.1 System interface to GRAM write directionDATA SHEET Preliminary V01BData stream from MCU is likethis figureEFigure 5.1: Image data sending order from hostThe data is written in the order illustrated above. The counter which dictates where inthe physical memory the data is to be written is controlled by MV, MX and MY bitssettingMADCTLMYMXMVPASETCASETVirtual to physical PointertranstatorVirtual (0,0) whenMV = don't care,MX = '0', MY = '0'Physical ColumnPointerVirtual (0,0) whenMV = don't care,MX = '1', MY = '0'(0,0) (0,X)Physical PagePointerPhysicalaxesX=239d, Y= 319d(Y,0)(Y,X)Virtual (0,0) whenMV = don't care,MX = '0', MY = '1'Virtual (0,0) whenMV = don't care,MX = '1', MY = '1'Figure 5.2: Image data writing controlMV MX MY CASET PASET0 0 0 Direct to Physical Column Pointer Direct to Physical Page Pointer0 0 1 Direct to Physical Column Pointer Direct to (Y - Physical Page Pointer)0 1 0 Direct to (X-Physical Column Pointer) Direct to Physical Page Pointer0 1 1 Direct to (X - Physical Column Pointer) Direct to (Y - Physical Page Pointer)1 0 0 Direct to Physical Page Pointer Direct to Physical Column Pointer1 0 1 Direct to (Y - Physical Page Pointer) Direct to Physical Column Pointer1 1 0 Direct to Physical Page Pointer Direct to (X-Physical Column Pointer)1 1 1 Direct to (Y - Physical Page Pointer) Direct to (X - Physical Column Pointer)Table 5.2: CASET and PASET control for physical column/page pointersHimax ConfidentialFor Go-tek OnlyThis information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosedin whole or in part without prior written permission of Himax.-P.58-October, 2009