RA8816
Preliminary Version 1.6
144x65 Character/Graphic LCD Driver
Chapter
Contents
Page
1. General Description ............................................................................ 5
2. Feature ............................................................................................... 5
3. Block Diagram..................................................................................... 5
4. Pin Definition ...................................................................................... 7
4-1 MPU Interface ...............................................................................................................................................7
4-2 Clock and Power..........................................................................................................................................8
4-3 LCD Panel Interface.....................................................................................................................................9
4-4 Misc. ..............................................................................................................................................................9
5. Registers Description.........................................................................11
5-1 Register Table ........................................................................................................................................... 11
5-2 Register Contents..................................................................................................................................... 12
6. Function Description ..........................................................................25
6-1 MPU Interface ............................................................................................................................................ 25
6-1-1 Parallel Interface.............................................................................................................................. 25
6-1-2 Serial Interface ................................................................................................................................ 26
6-1-3 Register Read/Write........................................................................................................................ 28
6-1-4 Memory Read/Write......................................................................................................................... 31
6-2 Memory....................................................................................................................................................... 33
6-3 System Clock............................................................................................................................................. 33
6-4 LCD Driver and Power Circuit.................................................................................................................. 34
6-4-1 Booster Circuit................................................................................................................................. 35
6-4-2 Voltage Regulator............................................................................................................................ 37
6-4-3 Voltage Follower.............................................................................................................................. 38
6-4-4 LCD Driver....................................................................................................................................... 39
6-5 Interrupt ..................................................................................................................................................... 39
6-6 Key-Scan.................................................................................................................................................... 40
6-7 I/O Port ....................................................................................................................................................... 40
6-8 EL Signals.................................................................................................................................................. 41
6-9 ASCII Block................................................................................................................................................ 42
6-10 Power Control ......................................................................................................................................... 43
7. Display Functions ..............................................................................44
7-1 Text Mode .................................................................................................................................................. 44
7-2 Graphic Mode ............................................................................................................................................ 45
7-3 Cursor Setting ........................................................................................................................................... 46
7-3-1 Cursor Position and Shift................................................................................................................. 46
7-3-2 Cursor Display and Blink................................................................................................................. 46
7-3-3 Cursor Height .................................................................................................................................. 46
7-4 Display Window......................................................................................................................................... 47
7-5 Horizontal Scroll........................................................................................................................................ 48
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