HD66789 Datasheet, PDF (3/156 Pages) Renesas Technology Corp – 528-channel, One-chip Driver for Amorphous TFT Panels with 262,144-color display RAM, Power Supply Circuit, and Gate Circuit

HD66789
Preliminary
Timing Interfacing with Liquid Crystal Panel Signals ....................................... 97
Scan Mode Setting .............................................................................................. 99
High-Speed Burst RAM Write Function ............................................................ 100
Conditions on using high-speed RAM write mode ................................................................ 101
High-Speed RAM Write with Window Address.................................................................... 103
Window Address Function ................................................................................. 105
Graphics Operation Function .............................................................................. 106
Graphics Operation ................................................................................................................ 106
Write-data Mask Function ..................................................................................................... 107
Graphics Operation Processing.............................................................................................. 107
γ-Correction Function ......................................................................................... 111
Configuration of Grayscale Amplifier ................................................................................... 112
γ-Correction Register ............................................................................................................. 114
Ladder resistors and 8-to-1 selector ....................................................................................... 115
Variable resistor..................................................................................................................... 115
Relationship between RAM data and output level................................................................. 121
8-color Display Mode ......................................................................................... 122
System Configuration ......................................................................................... 124
Configuration of Power Generation Circuit........................................................ 125
Specification of External Elements Connected to HD66789 Power Supply ...... 126
Instruction Setting Flow...................................................................................... 127
Power Supply Setting Flow ................................................................................ 129
Pattern Diagram for Voltage Setting................................................................... 130
Oscillation Circuit............................................................................................... 131
n-raster-row Inversion AC Drive ........................................................................ 132
Interlaced Drive .................................................................................................. 133
AC Timing ......................................................................................................... 135
Frame-Frequency Adjustment Function ............................................................. 136
Relationship between Liquid Crystal Drive Duty and Frame Frequency .............................. 136
Screen -split Drive Function ............................................................................... 137
Rev.0.12, May 09 2003, page 3 of 156