TOMATO LSI Inc.
HT0313A 65COM / 132SEG DRIVER & CONTROLLER FOR STN LCD Ve r 0 .0
3
CONTENTS
1. INTRODUCTION -----------------------------------------------------------------------------------------------------------
2. FEATURES ---------------------------------------------------------------------------------------------------------------
3. BLOCK DIAGRAM -----------------------------------------------------------------------------------------------------
4. PAD CONFIGUR AT ION ------------------------------------------------------------------------------------------------
4-1. Pad center coordinates -------------------------------------------------------------------------------------------
5. PIN DESCRIPTION ----------------------------------------------------------------------------------------------------
6. FUNCTIONAL DESCRIPTION -----------------------------------------------------------------------------------
6-1. Micro processor interface ----------------------------------------------------------------------------------------
a. Chip select input
b. Interface
c. Paralle l inter face (P S = "H")
d. Serial interface (PS = "L")
e. Busy flag
f. Data accessing
6-2. Display data RAM (DDRAM) --------------------------------------------------------------------------------------
a. Display data RAM
b. Page address circuit
c. Column address circuit
d. Line address circuit
e. Segment control circuit
6-3. LCD display circuit ----------------------------------------------------------------------------------------------------
a. Oscillator
b. Display timing generator circuit
c. Common output control circuit
6-4. LCD driver circuit ---------------------------------------------------------------------------------------------------
6-5. Power supply circuits -------------------------------------------------------------------------------------------
a. Voltage converter circuits
b. Voltage regulator circuits
c. Voltage follower circuits
d. High power mode
6-6. Reference circuit examples --------------------------------------------------------------------------------------
6-7. Reset circuit --------------------------------------------------------------------------------------------------------
7. PROGRA M INSTRUCTION ----------------------------------------------------------------------------------------
7-1. Read display data -------------------------------------------------------------------------------------------------
7-2. Write display data ------------------------------------------------------------------------------------------------
7-3. Read status ----------------------------------------------------------------- ---------------------------------------
7-4. Display ON / OFF -----------------------------------------------------------------------------------------------------
7-5. Ini tial display line -------------------------------------------------------------------------------------------------
7-6. Reference voltage select --------------------------------------------------------------------------------------
7-7. Set page address ------------------------------------------------------------------------------------------------
7-8. Set column address -----------------------------------------------------------------------------------------------
7-9. ADC select ---------------------------------------------------------------------------------------------------------
7-10. Reverse display ON / OFF-----------------------------------------------------------------------------------------
7-11. Entire display ON / OFF--------------------------------------------------------------------------------------------
7-12. Select LCD bias --------------------------------------------------------------------------------------------------
7-13. Set modify-read ---------------------------------------------------------------------------------------------------
7-14. Reset modify-read -----------------------------------------------------------------------------------------------
7-15. Reset ----------------------------------------------------------------------------------------------------------------
7-16. SHL select ----------------------------------------------------------------------------------------------------------
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