參數(shù)資料
型號: EPL43102
英文描述: Graphic STN LCD Drivers with Built-in RAM
中文描述: 圖形STN液晶顯示器驅(qū)動(dòng)器,內(nèi)置內(nèi)存
文件頁數(shù): 47/64頁
文件大?。?/td> 280K
代理商: EPL43102
43 COM / 102 SEG LCD DRIVER
The information in this document is subject to change without notice.
46
DATA_W1:
MOV
A,#LINE_X_MAX
;SET MAX SEGMENTS OF DDRAM
MOV
REG_LCDARL,A
BC
REG_PORTB,F_LCD_A0
;SET LCD /A0 = 0 INSTRUCTION OUTPUT
MOV
A,#LCD_COM_PAGE
ADD
A,REG_LCDARH
CALL
WRITE_LCD_1BYTE
MOV
A,#0b00000000
;SET LOWER ORDER COLUMN ADDRESS=0000
CALL
WRITE_LCD_1BYTE
MOV
A,#0b00010000
;SET HIGHER ORDER COLUMN ADDRESS=0000
CALL
WRITE_LCD_1BYTE
BS
REG_PORTB,F_LCD_A0
;SET LCD /A0 = 1 DATA OUTPUT
DATA_W2:
TBRD
01,REG_ACC
;ACCESS THE DATA OF DISPLAY_PICTURE
CALL
WRITE_LCD_1BYTE
DEC
REG_LCDARL
JBS
REG_STATUS,F_C,DATA_W2
;IDENTIFY RES_STATUS CARRY BIT SET OR NOT
DEC
REG_LCDARH
JBS
REG_STATUS,F_C,DATA_W1
BC
REG_PORTB,F_LCD_A0
;LCD /A0 = 0 FOR INSTRUCTION OUTPUT
RET
;*****************************************************************************
;
WRITE ONE BYTE DATA INTO DDRAM (PARALLEL MODE 80 SERIES)
;*****************************************************************************
;AT FIRST DEFINE A0 TO IDENTIFY DATA OR INSTRUCTION WRITE
WRITE_LCD_1BYTE:
JBS
REG_DCRG,F_LAHEN,WRITE_LCD_1BYTE_1
;CHECK REG_DCRG LAHEN BIT=1 OR NOT
BC
REG_PORTC,F_LCD_WR
;SET /WR=0 ENABLE WRITE
MOV
REG_DATA,A
;MOVE A==> PORT_G
NOP
;Write low pulse( Wait 2 instruction cycles)
NOP
BS
REG_PORTC,F_LCD_WR
;SET /WR=1 DISABLE WRITE
NOP
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