參數(shù)資料
型號: S6A0069
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 40 SEG / 16 COM DRIVER & CONTROLLER FOR DOT MATRIX LCD
中文描述: 40賽格/ 16 COM驅動程序
文件頁數(shù): 15/35頁
文件大小: 368K
代理商: S6A0069
40 SEG / 16 COM DRIVER & CONTROLLER FOR DOT MATRIX LCD
S6A0069
15
10) Write Data to RAM
1
RS
0
D7
D6
D5
D4
D3
D2
D1
D0
R/W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Write binary 8-bit data to DDRAM/CGRAM. The selection of RAM from DDRAM, CGRAM, is set by the previous
address set instruction (DDRAM address set, CGRAM address set). RAM set instruction can also determine the
AC direction to RAM. After write operation, the address is automatically increased/decreased by 1, according to
the entry mode.
11) Read Data from RAM
1
RS
1
D7
D6
D5
D4
D3
D2
D1
D0
R/W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Read binary 8-bit data from DDRAM/CGRAM. The selection of RAM is set by the previous address set
instruction. If address set instruction of RAM is not performed before this instruction, the data that read first is
invalid, because the direction of AC is not determined. If you read RAM data several times without RAM address
set instruction before read operation, you can get correct RAM data from the second, but the first data would be
incorrect, because there is no time margin to transfer RAM data. In case of DDRAM read operation, cursor shift
instruction plays the same role as DDRAM address set instruction : it also transfer RAM data to output data
register. After read operation address counter is automatically increased/decreased by 1 according to the entry
mode. After CGRAM read operation, display shift may not be executed correctly.
NOTE:
In case of RAM write operation, after this AC is increased/decreased by 1 like read operation. In this time,
AC indicates the next address position, but you can read only the previous data by read instruction.
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