PD17012_15 Datasheet, PDF (230/320 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE

µPD17012, 17P012
19.7 Using LCD Controller/Driver
Figure 19-13 shows an example of wiring an LCD panel.
An example of a program that turns on a 7-segment LCD panel by using the LCD0 to LCD3 pins as shown
in Figure 19-13 is shown below.
Example
PMN0
CH
LCDDATA:
;
;
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
MEM 0.01H
; Preset memory number and BK data storage area
FLG DBF0.2 ; Symbol definition of least significant bit of DBF as “CH” display flag
; Display table data
b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0
; Corresponds to LCD segment register
–fe agd –bc
; Corresponds to LCD group register
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 B ; BLANK
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 B ;1
0 0 0 0 0 0 0 1 0 1 1 1 0 0 1 0 B ;2
0 0 0 0 0 0 0 0 0 1 1 1 0 0 1 1 B ;3
0 0 0 0 0 0 1 0 0 0 1 0 0 0 1 1 B ;4
0 0 0 0 0 0 1 0 0 1 1 1 0 0 0 1 B ;5
0 0 0 0 0 0 1 1 0 1 1 1 0 0 0 1 B ;6
0 0 0 0 0 0 1 0 0 1 0 0 0 0 1 1 B ;7
0 0 0 0 0 0 1 1 0 1 1 1 0 0 1 1 B ;8
0 0 0 0 0 0 1 0 0 1 1 1 0 0 1 1 B ;9
0 0 0 0 0 0 1 1 0 1 1 0 0 0 1 1 B ;A
0 0 0 0 0 0 1 1 0 1 1 1 0 0 1 1 B ;B
0 0 0 0 0 0 1 1 0 1 0 1 0 0 0 0 B ;C
0 0 0 0 0 0 1 1 0 1 0 1 0 0 1 1 B ;D
0 0 0 0 0 0 1 1 0 1 1 1 0 0 0 0 B ;E
0 0 0 0 0 0 1 1 0 1 1 0 0 0 1 0 B ;F
CLR1
MOV
MOV
MOV
MOV
MOV
ADD
ADDC
ADDC
ADDC
MOVT
MOV
MOV
SKGE
SET1
BANK2
LD
LD
LD
SET1
PYASEL
RPL, #1110B
AR3, #.DL.LCDDATA SHR 12 AND 0FH
AR2, #.DL.LCDDATA SHR 8 AND 0FH
AR1, #.DL.LCDDATA SHR 4 AND 0FH
AR0, #.DL.LCDDATA
AND 0FH
AR0, PMN0
AR1, #0
AR2, #0
AR3, #0
DBF, @AR
RPH, #0
RPL, #0
PMN0, #0AH
CH
LCDD0, DBF0
LCDD1, DBF1
LCDD2, DBF2
LCDEN
228
Data Sheet U10101EJ4V0DS