UPD17073 NEC, UPD17073 Datasheet - Page 160

• Manufacturer Part Number: UPD17073
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
• Manufacturer: NEC

18.3 LCD Segment Register
manipulation instructions.
segment register is set to “1” at this time, the LCD display dot is on; the dot goes off if the register is set to “0”.
160
Address
Symbol
The LCD segment register sets dot data to turn on or turn off dots on the LCD.
Figure 18-3 shows the location in the data memory and configuration of the LCD segment register.
Because the LCD segment register is located in data memory, it can be controlled by all the data memory
One nibble of the LCD segment register can set display data of 4 dots (data to turn dots on or off). If the LCD
Figure 18-4 shows the relation between the LCD segment register and LCD display dot.
LCDD14
41H
b
Figure 18-3. Location on Data Memory and Configuration of LCD Segment Register
3
LCDD13
0
1
2
3
4
5
6
7
42H
b
LCDD14
2
0
BANK0
LCDD12
1
43H
b
1
2
LCDD11
3
44H
b
0
4
LCDD10
5
45H
BANK1
Column address
6
LCDD9
7
46H
LCD segment register
8
LCDD8
9
47H
A
LCD segment register
LCDD7
B
48H
Data memory
C
LCDD6
System register
D
49H
DBF
E
LCDD5
4AH
F
B
LCDD4
4BH
C
D
LCDD3
4CH
E
F
LCDD2
4DH
0
1
2
3
4
5
6
PD17072,17073
7
LCDD1
4EH
LCDD0
4FH