FD2000

Rev1.0

2/37

CONTENTS

1. OVERVIEW ............................................................................................................................................................ 4

2. FEATURES............................................................................................................................................................. 4

3. BLOCK DIAGRAM .................................................................................................................................................. 5

4. PIN ASSIGNMENTS............................................................................................................................................... 6

4.1. 80-MQFP-1420 ................................................................................................................................................ 6

4.2. 80-LQFP-1212 ................................................................................................................................................. 7

5. PIN DESCRIPTIONS.............................................................................................................................................. 8

6. BLOCK FUNCTIONS.............................................................................................................................................. 9

6.1. AC (Address counter)....................................................................................................................................... 9

6.2. DCRAM (Data control RAM) ............................................................................................................................ 9

6.3. ADRAM (Additional data RaM) ...................................................................................................................... 10

6.4. CGROM (Character generator ROM) ............................................................................................................ 11

6.5. CGRAM (Character generator RAM) ............................................................................................................. 11

7. RESET FUNCTION ............................................................................................................................................. 12

8. SERIAL DATA TRANSFER FORMAT................................................................................................................. 13

9. INSTRUCTION TABLE......................................................................................................................................... 14

10. DETAILED INSTRUCTION DESCRIPTIONS .................................................................................................... 15

10.1. Set display technique ― Sets the display technique ................................................................................... 15

10.2. Display on/off control ― Turns the display on or off .................................................................................... 15

10.3. Display shift ― Shifts the display................................................................................................................. 16

10.4. Set AC address ― Specifies the DCRAM and ADRAM address for AC ..................................................... 17

10.5. DCRAM data write ― Specifies the DCRAM address and stores data at that address .............................. 17

10.6. ADRAM data write ― Specifies the ADRAM address and stores data at that address .............................. 19

10.7. CGRAM data write ― Specifies the CGRAM address and stores data at that address ............................. 21

11. NOTES ON THE POWER ON AND POWER OFF SEQUENCES .................................................................... 22

12. LCD DRIVE TECHNIQUE .................................................................................................................................. 23

12.1. 1/8 duty, 1/4 bias drive technique ................................................................................................................ 23

12.2. 1/9 duty, 1/4 bias drive technique ................................................................................................................ 24

12.3. 1/10 duty, 1/4 bias drive technique .............................................................................................................. 25

13. SAMPLE APPLICATION CIRCUIT..................................................................................................................... 26

13.1. 1/8 duty, 1/4 bias drive (For use with normal panels) .................................................................................. 26

13.2. 1/8 duty, 1/4 bias drive (For use with large panels) ..................................................................................... 26

13.3. 1/9 duty, 1/4 bias drive (For use with normal panels) .................................................................................. 27

13.4. 1/9 duty, 1/4 bias drive (For use with large panels) ..................................................................................... 27

13.5. 1/10 duty, 1/4 bias drive (For use with normal panels) ................................................................................ 28

13.6. 1/10 duty, 1/4 bias drive (For use with large panels) ................................................................................... 28