參數(shù)資料
型號: S1C60N01F
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 0.08 MHz, MICROCONTROLLER, PQFP48
封裝: PLASTIC, QFP12-48
文件頁數(shù): 25/153頁
文件大?。?/td> 901K
代理商: S1C60N01F
II-32
EPSON
S1C60N01 TECHNICAL SOFTWARE
CHAPTER 3: PERIPHERAL CIRCUITS (LCD Driver)
Bit-unit operation of the display memory
Label
Mnemonic/operand
Comment
LD
X,SEGBUF
;Set address display
;memory buffer
LD
Y,090H
;Set address display memory
LD
MX,3
;Set buffer data
LD
MY,MX
;SEG-A, B ON (q
q, v
v)
AND
MX,1110B
;Change buffer data
LD
MY,MX
;SEG-A OFF (q, v
v)
AND
MX,1101B
;Change buffer data
LD
MY,MX
;SEG-B OFF (q, v)
For manipulation of the display memory in bit-units for the
assignment of Figure 3.5.5, a buffer must be provided in
RAM to hold data. Note that, since the display memory is
write-only, data cannot be changed directly using an ALU
instruction (for example, AND or OR).
After manipulating the data in the buffer, write it into the
corresponding display memory using the transfer command.
Fig. 3.5.5
Example of segment
assignment
vq
090H
D3
D2
D1
D0
Address
Data
v
q
: SEG-A
: SEG-B
相關(guān)PDF資料
PDF描述
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