ra8835 Topway Display, ra8835 Datasheet - Page 4

• Manufacturer Part Number: ra8835
• Description: Dot Matrix Lcd Controller
• Manufacturer: Topway Display

8. Application Notes ........................................................................................55
RAiO TECHNOLOGY INC.
Version 1.7
7-4 Static RAM ...................................................................................................................35
7-5 Supply Current during Display Memory Access ......................................................35
7-6 Oscillator Circuit .........................................................................................................35
7-7 Status Flag...................................................................................................................36
7-8 Reset ............................................................................................................................38
7-9 Character Configuration.............................................................................................38
7-10 Screen Configuration................................................................................................39
7-11 Cursor Control...........................................................................................................42
7-12 Memory to Display Relationship..............................................................................44
7-13 Scrolling.....................................................................................................................47
7-14 CG Characteristics....................................................................................................50
7-15 CG Memory Allocation..............................................................................................50
7-16 Setting Character Generator Address.....................................................................51
7-17 Character Codes .......................................................................................................53
8-1 Initialization Parameters.............................................................................................55
8-2 System Overview ........................................................................................................64
8-3 System Interconnection .............................................................................................65
8-4 Smooth Horizontal Scrolling ......................................................................................66
7-3-2 6802 to RA8835 Interface.................................................................................................................. 34
7-10-1 Screen Configuration...................................................................................................................... 39
7-10-2 Display Address Scanning ............................................................................................................. 40
7-10-3 Display Scan Timing ....................................................................................................................... 41
7-11-1 Cursor Register Function ............................................................................................................... 42
7-11-2 Cursor Movement ............................................................................................................................ 43
7-11-3 Cursor Display Layers .................................................................................................................... 43
7-13-1 On-page Scrolling ........................................................................................................................... 47
7-13-2 Inter-page Scrolling......................................................................................................................... 48
7-13-3 Horizontal Scrolling ........................................................................................................................ 48
7-13-4 Bi-directional Scrolling ................................................................................................................... 49
7-13-5 Scroll Units....................................................................................................................................... 49
7-14-1 Internal Character Generator ......................................................................................................... 50
7-14-2 External Character Generator ROM............................................................................................... 50
7-14-3 Character Generator RAM .............................................................................................................. 50
7-16-1 M1 = 1................................................................................................................................................ 52
7-16-2 CG RAM Addressing Example ....................................................................................................... 52
8-1-1 System Set Instruction and Parameters ......................................................................................... 55
8-1-2 Initialization Example........................................................................................................................ 56
8-1-3 Display Mode Setting Example 1: combining text and graphics.................................................. 60
8-1-4 Display Mode Setting Example 2: combining graphics and graphics ......................................... 62
8-1-5 Display Mode Setting Example 3: combining three graphics layers ........................................... 63
8-3-1 System Diagram ................................................................................................................................ 65
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Dot Matrix LCD Controller
www.raio.com.tw
RA8835