Abov MC96F6432 Series, User Manual

Page: 271 / 327

MC96F6432
June 22, 2018 Ver. 2.9 271
11.14.2 LCD Display RAM Organization
Display data are stored to the display data area in the external data memory.
The display data which stored to the display external data area (address 0000H-001AH) are read automatically
and sent to the LCD driver by the hardware. The LCD driver generates the segment signals and common signals
in accordance with the display data and drive method. Therefore, display patterns can be changed by only
overwriting the contents of the display external data area with a program.
Figure 11-99 shows the correspondence between the display external data area and the COM/SEG pins. The
LCD is turned on when the display data is
“1” and turned off when “0”.
SEG26 001AH
SEG25 0019H
SEG24
SEG23
SEG22 0016H
SEG7 0007H
SEG6 0006H
SEG5 0005H
SEG4 0004H
SEG3 0003H
SEG2 0002H
SEG1 0001H
SEG0 0000H
bit0 bit1 bit2 bit3
C
O
M
0
bit4 bit5 bit6 bit7
0017H
0018H
C
O
M
1
C
O
M
2
C
O
M
3
C
O
M
4
C
O
M
5
C
O
M
6
C
O
M
7
Figure 11.99 LCD Circuit Block Diagram