Datasheet

CHAPTER 15 LCD CONTROLLER/DRIVER
386 User’s Manual U18698EJ1V0UD
15.5 LCD Display Data Memory
The LCD display data memory is mapped at addresses FA40H to FA55H. Data in the LCD display data memory
can be displayed on the LCD panel using the LCD controller/driver.
Figure 15-7 shows the relationship between the contents of the LCD display data memory and the
segment/common outputs.
The areas not to be used for display can be used as normal RAM.
Figure 15-7. Relationship Between LCD Display Data Memory Contents and Segment/Common Outputs
FA55H
FA54H
FA53H
SEG21
SEG20
SEG19
b7 b6 b5 b4 b3 b2 b1 b0
COM7 COM6 COM5 COM4
0000
0000
0000
0000
COM3 COM2 COM1 COM0
FA45H
FA44H
FA43H
FA42H
FA41H
FA40H
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
Caution No memory is allocated to the higher 4 bits of FA40H to FA43H. Be sure to set there bits to 0.