Lcd Display Data Memory - NEC Renesas mPD71312 User Manual

3.6 LCD Display Data Memory

The LCD display data memory is mapped at addresses 00H to 23H of LCDSEG for 52-pin product and addresses
00H to 27H of LCDSEG for 64-pin product. Data in the LCD display data memory can be displayed on the LCD panel
using the LCD controller/driver.
Figure 3-9 shows the relationship between the contents of the LCD display data memory and the
segment/common outputs.
Figure 3-9. Relationship Between LCD Display Data Memory Contents and Segment/Common Outputs
LCDSEG's 23H
LCDSEG's 22H
LCDSEG's 21H
LCDSEG's 20H
LCDSEG's 02H
LCDSEG's 01H
LCDSEG's 00H
LCDSEG's 27H
LCDSEG's 26H
LCDSEG's 25H
LCDSEG's 24H
LCDSEG's 02H
LCDSEG's 01H
LCDSEG's 00H
Caution No memory is allocated to the higher 4 bits of the LCD display data memory. Be sure to set
there bits to 0.
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CHAPTER 3 LCD CONTROLLER/DRIVER
(a) 52-pin product
b7 b6 b5
Address
(b) 64-pin product
b7 b6 b5
Address
User's Manual U18438EJ2V0UD
b4 b3 b2 b1
COM3 COM2 COM1 COM0
b4 b3 b2 b1
COM3 COM2 COM1 COM0
b0
S35
S34
S33
S32
S2
S1
S0
b0
S39
S38
S37
S36
S2
S1
S0