參數(shù)資料
型號: HCD66731A01BP
廠商: Hitachi,Ltd.
英文描述: Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
中文描述: 點陣液晶顯示控制器/驅(qū)動器支持日語漢字,韓文字體顯示
文件頁數(shù): 98/131頁
文件大小: 5332K
代理商: HCD66731A01BP
HD66730/HD66731
97
Partial Smooth Scroll
Partial smooth scroll displays one to three leftmost characters as fixed while the remaining ones undergo a
horizontal smooth scroll in the left and right direction. Specifically, the number of leftmost characters to be
fixed is specified by the partial scroll bits (PS1/0) in the scroll control register 2 (SCR2: R6). For example,
when bits PS1/0 are 10, the two leftmost characters are fixed; when 11, the three leftmost characters are
fixed.
Although half-size characters can be displayed in a fixed display area, they must be displayed in even-
numbered groups of two, four or six characters. Figure 31 shows an example of smooth scroll performed in
a display when bits PS1/0 are set to 10. The two leftmost characters (
remaining four characters undergo a smooth scroll.
) are displayed as fixed, and the
Perform no shift
PS1/0 = “10”
SCR3 = “00” (Hex)
Shifts to the left by
one dot
PS1/0 = “10”
SCR3 = “01” (Hex)
Shifts to the left by
two dots
PS1/0 = “10”
SCR3 = “02” (Hex)
Shifts to the left by
three dots
PS1/0 = “10”
SCR3 = “03” (Hex)
Shifts to the left by
16 dots
PS1/0 = “10”
SCR3 = “0A” (Hex)
Shifts to the left by
32 dots
PS1/0 = “10”
SCR3 = “20” (Hex)
Figure 31 Example of Partial Smooth Scroll Display
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