- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384041 > UPD161401W (NEC Corp.) 256-COLOR, 1/80-DUTY LCD CONTROLLER/DRIVER WITH ON-CHIP RAM PDF資料下載
參數(shù)資料
| 型號： | UPD161401W |
| 廠商： | NEC Corp. |
| 英文描述： | 256-COLOR, 1/80-DUTY LCD CONTROLLER/DRIVER WITH ON-CHIP RAM |
| 中文描述： | 256色，1/80-DUTY LCD控制器/驅(qū)動器，片內(nèi)RAM |
| 文件頁數(shù)： | 21/124頁 |
| 文件大小： | 647K |
| 代理商： | UPD161401W |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁當(dāng)前第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁
Data Sheet S15726EJ2V0DS
21
μ
PD161401
5.2 Display Data RAM
5.2.1
Display data RAM
This RAM stores dot data for display and consists of (101
×
80)
×
8 bits. Any address of this RAM can be accessed by
specifying an X address and a Y address.
Display data D
0
to D
15
transmitted from the CPU corresponds to the pixels on the LCD (refer to
Table 5
1
). If the
μ
PD161401 is used in a multi-chip configuration, restrictions on display data transfer are relaxed and display setting
can be performed relatively freely.
The CPU writes data to the display RAM via I/O buffers. This write operation is performed independently of an
operation to read signals for driving the LCD. Therefore, even if the display data RAM is asynchronously accessed,
adverse effects such as flickering do not occur or the current LCD screen.
Table 5
1. Display Data RAM
MSB
LSB
MSB
LSB
D
15
D
14
D
13
D
12
D
11
D
10
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
Dot (R)
Dot (G)
Dot (B)
Dot (R)
Dot (G)
Dot (B)
Pixel 1
Pixel 2
LCD panel
Pixel 1
Pixel 2
Pixel 3
Pixel 4
Pixel 5
Pixel 6
Pixel 7
Pixel 8
Pixel 1
Pixel 2
Pixel 3
Pixel 4
Pixel 5
Pixel 6
Pixel 7
Pixel 8
00H
01H
02H
03H
04H
05H
06H
07H
5.2.2
An X address of the display data RAM is specified by using the X address register (R4) as shown in
Figure 5
5
.
If the X address increment mode (INC = 0: control register 2 (R1)) is used, the specified X address is incremented or
decremented by one each time display data is written. Whether the address is incremented or decremented is specified
by the XDIR flag of control register 2 (R1) as shown in
Table 5
2
.
In the increment mode, the X address is incremented up to 64H. If more display data is written, the Y address is
incremented (YDIR = 0) or decremented (YDIR = 1), and the X address returns to 00H.
In the decrement mode, the X address is decremented to 00H. If more display data is written, the Y address is
incremented (YDIR = 0) or decremented (YDIR = 1), and the X address returns to 64H.
When the 16-bit data bus is selected (BMOD = 0), only an even address can be specified. Moreover, when the 16-bit
data bus is selected, dummy data is required as shown in
Figure 5
3
.
X address circuit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD16311GC-AB6 | 1/8- to 1/16-DUTY FIPTM VFD CONTROLLER/DRIVER |
| UPD16311 | 1/8- to 1/16-DUTY FIPTM VFD CONTROLLER/DRIVER |
| UPD16326GB-3B4 | 32-BIT FLUORESCENT DISPLAY TUBE DRIVER |
| UPD16326 | 32-BIT FLUORESCENT DISPLAY TUBE DRIVER |
| UPD16334 | 96-Bit AC-PDP DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD161602A | 制造商:NEC 制造商全稱:NEC 功能描述:360/396-OUTPUT TFT-LCD SOURCE DRIVER |
| UPD161602AP | 制造商:NEC 制造商全稱:NEC 功能描述:360/396-OUTPUT TFT-LCD SOURCE DRIVER |
| UPD161602B | 制造商:NEC 制造商全稱:NEC 功能描述:360/396-OUTPUT TFT-LCD SOURCE DRIVER |
| UPD161602BP | 制造商:NEC 制造商全稱:NEC 功能描述:360/396-OUTPUT TFT-LCD SOURCE DRIVER |
| UPD161620 | 制造商:NEC 制造商全稱:NEC 功能描述:432 OUTPUT TFT-LCD SOURCE DRIVER WITH RAM |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。