參數(shù)資料
型號(hào): HD66717
廠商: Hitachi,Ltd.
元件分類: 晶體
英文描述: (Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver)
中文描述: (低功耗點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器)
文件頁數(shù): 13/90頁
文件大?。?/td> 716K
代理商: HD66717
HD66717
464
Table 2
Register Selection
RS
R/W
Operation
0
0
IR write as an internal operation (display clear, etc.)
0
1
Read busy flag (DB7) read and address counter (DB0 to DB6) (4/8-bit bus interface)
1
0
DR write as an internal operation (DR to DDRAM, CGRAM, SEGRAM, or annunciator)
1
1
DR read as an internal operation (DDRAM, CGRAM, or SEGRAM to DR)
(4/8-bit bus interface)
Display Data RAM (DDRAM)
Display data RAM (DDRAM) stores display data represented in 8-bit character codes. Its capacity is 60
×
8 bits, or 60 characters, which is equivalent to an area of 12 characters
×
5 lines. Any number of display
lines (LCD drive duty ratio) from 1 to 4 can be selected by software. Here, assignment of DDRAM
addresses is the same for all display modes (Table 3). The line to be displayed at the top of the display
(display-start line) can also be selected by register settings. See Table 4.
MSB
Example : DDRAM address 4A
Address
counter
(AC)
AC6 AC5 AC4 AC3 AC2 AC1
LSB
AC0
1
0
0
1
0
1
0
Figure 1 Address Counter and DDRAM Address
Table 3
DDRAM Addresses and Display Positions
Display
Line
1st
Char.
2nd
Char.
3rd
Char.
4th
Char.
5th
Char.
6th
Char.
7th
Char.
8th
Char.
9th
Char.
10th
Char.
11th
Char.
12th
Char.
1st
00
01
02
03
04
05
06
07
08
09
0A
0B
2nd
10
11
12
13
14
15
16
17
18
19
1A
1B
3rd
20
21
22
23
24
25
26
27
28
29
2A
2B
4th
30
31
32
33
34
35
36
37
38
39
3A
3B
5th
Note: Char. indicates character position.
40
41
42
43
44
45
46
47
48
49
4A
4B
相關(guān)PDF資料
PDF描述
HD66717A03TA0 (Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver)
HD66724 Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動(dòng)器)
HD66725 Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動(dòng)器)
HD66726 Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動(dòng)器)
HD66727 Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動(dòng)器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66717A03TA0 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver)
HD66720 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
HD66720A01TF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66724 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions
HD66724/HD66725 制造商:未知廠家 制造商全稱:未知廠家 功能描述: