參數(shù)資料
型號: HD66731
廠商: Hitachi,Ltd.
英文描述: Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅動器)
中文描述: 點陣液晶顯示控制器/驅動器(點陣液晶顯示控制器/驅動器)
文件頁數(shù): 68/131頁
文件大小: 5169K
代理商: HD66731
HD66730/HD66731
68
Entry Mode Register (R0)
The entry mode register (Figure 6) includes bits I/D, RM1, and RM0.
I/D:
Increments (I/D = 1) or decrements (I/D = 0) the DDRAM address by 1 when a character code is
written into or read out from the DDRAM. When the DDRAM address is incremented by 1, the cursor or
blinking will also shift to the right. This applies to both CGRAM and SEGRAM.
RM1/0:
Selects DDRAM, CGRAM, or SEGRAM for access (Table 10).
Table 11
RAM Selection by RM1 and RM0
RM1
RM0
Selected RAM
0
0/1
Display data RAM (DDRAM)
1
0
Character generator RAM (CGRAM)
1
1
Segment RAM (SEGRAM)
R/W
0
RS
1
DB7
0
0
0
0
0
I/D RM1
DB0
RM0
Figure 6 Entry Mode Register
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