UPD78F1502AGK-GAK-AX Datasheet, PDF (691/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 16 LCD CONTROLLER/DRIVER
16.4 LCD Display Data Memory
The LCD display data memory is mapped at addresses F0400H to F041FH (78K0R/LF3), F0400H to F0427H
(78K0R/LG3) or F0400H to F0435H (78K0R/LH3). Data in the LCD display data memory can be displayed on the LCD
panel using the LCD controller/driver.
Figure 16-9 to 16-11 show 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 16-9. Relationship Between LCD Display Data Memory Contents and Segment/Common Outputs
(78K0R/LF3)
(a) Static, 2-time-slice, 3-time-slice, and 4-time-slice
B-pattern area
A-pattern area
b7
b6
b5
b4
b3
b2
b1
b0
F041EH
SEG30
F041DH
SEG29
F041CH
SEG28
F0405H
F0404H
F0403H
F0402H
F0401H
F0400H
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM3 COM2 COM1 COM0 COM3 COM2 COM1 COM0
(b) 8-time-slice
b7
b6
b5
b4
b3
b2
b1
b0
F041EH
SEG30
F041DH
SEG29
F041CH
SEG28
F0405H
F0404H
F0403H
F0402H
F0401H
F0400H
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
Note
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM7 COM6 COM5 COM4 COM3 COM2 COM1 COM0
Note The COM4 to COM7 pins and SEG0 to SEG3 pins are used alternatively. To use the LCD display data memory
when the number of time slices is eight, the area of F0400H to F0403H can be used for a purpose other than
display, because it is not used for LCD display.
R01UH0004EJ0501 Rev.5.01
675
Jun 20, 2011