參數(shù)資料
型號(hào)： HCD66727A04BP
廠商： Hitachi,Ltd.
英文描述： Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
中文描述： 低功耗點(diǎn)陣液晶顯示控制器/鍵掃描功能驅(qū)動(dòng)程序
文件頁(yè)數(shù)： 20/97頁(yè)
文件大?。?/td> 513K
代理商： HCD66727A04BP
HD66727
20
Character Generator RAM (CGRAM)
Character generator RAM (CGRAM) of 32
×
6 bits allows the user to redefine the character patterns. In the
case of 6
×
8-dot characters, up to four characters may be redefined.
Write the character codes at addresses “00”H to “03”H into DDRAM to display the character patterns
stored in CGRAM (Table 8).
Table 8
Example of Relationships between Character Code (DDRAM) and Character Pattern
(CGRAM Data)
D7 D6 D5 D4 D3 D2 D1 D0
Character code (DDRAM data)
CGRAM data
O4 O3 O2 O1 O0
O5
LSB
MSB
A2 A1 A0
A4 A3
0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
*
*
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
1
0
0
0
0
1
1
1
0
0
0
0
0
0
0
*
*
O6
O7
CGRAM address
1
1
1
0
0
0
0
0
*
1
0
0
0
0
1
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
*
*
0
0
0
0
1
1
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
1
1
0
0
0
1
0
0
0
1
1
1
0
0
0
0
1
1
*
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Character
pattern
(1)
(Don't care)
(Don't care)
Character
pattern
(4)
Notes: 1. The lower 2 bits of the character code correspond to the upper two bits of the CGRAM address
(2 bits: 4 types).
2. CGRAM address bits 0 to 2 designate the character pattern raster-row position. The 8th raster-
row is the cursor position and its display is formed by a logical OR with the cursor.
3. In the 5-dot font width, the higher three bits of the CGRAM data are invalid; use the lower five
bits (O4 to O0). In the 6-dot font width, the higher two bits are invalid.
4. When the upper four bits (bits 7 to 4) of the character code are 0, CGRAM is selected.
Bits 3 and 2 of the character code are invalid (*). Therefore, for example, the character codes
00H and 08H correspond to the same CGRAM address.
5. A set bit in the CGRAM data corresponds to display selection, and 0 to non-selection.
Segment RAM (SEGRAM)
Segment RAM (SEGRAM) is used to enable control of segments such as icons and marks by the user
program. Segments and characters are driven by a multiplexing drive method.
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PDF描述
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HCD66730A01 Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
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相關(guān)代理商/技術(shù)參數(shù)
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HCD66730A00 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
HCD66730A01 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
HCD66731A00BP 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
HCD66731A01BP 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
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