- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98008 > M66271FP 320 X 240 DOTS DOT MAT LCD DSPL CTLR, PQFP80 PDF資料下載
參數(shù)資料
| 型號： | M66271FP |
| 元件分類： | 顯示控制器 |
| 英文描述： | 320 X 240 DOTS DOT MAT LCD DSPL CTLR, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數(shù)： | 7/30頁 |
| 文件大小： | 309K |
| 代理商： | M66271FP |
第1頁第2頁第3頁第4頁第5頁第6頁當前第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
M66271FP
REJ03F0267-0200 Rev.2.00 Mar 18, 2008
Page 13 of 27
Function of Cycle Steal Control
M66271FP has a function for processing data of a line with more efficient. This function access with the cycle steal
method as taking
WAIT for MPU during the display term with necessity for the display data transfer from built-in
VRAM to LCD.
On other side, don't output
WAIT for keeping throughput of MPU during the horizontal synchronous term with no
necessity for the display data transfer from VRAM to LCD side.
But certainly set a term of accessing with the cycle steal method by CSW register, for controlling an error action near
the end of horizontal synchronous term.
Ex.) Assuming 320
× 240 dots LCD
LP
CP
UD <3:0>
CSE
(Internal signal)
Setting by CR register
Displaying term (Cycle steal method)
(Necessity for data transfer from VRAM to LCD side)
Horizontal synchronous term
(No necessity for data transfer from VRAM to LCD side)
Setting by LPW register
Start WAIT for MPU according to
cycle steal access
Access with bus timing of MPU
without
WAIT for MPU.
Start WAIT for MPU in timing of CSE "H"
according to bus timing of MPU
4-bit transfer
Output every transfer of
a display data
Output when finish transfer
of display data with a line
1 Line
1
2
3
78
79
80
Setting by CSW register
Figure 4 Function of Cycle Steal Control
Handling of Oscillator Pin
Crystal oscillator
C1
Rf
C2
Rd
OSC2
OSC1
Open
OSC2
OSC1
Clock
generator
Note: As far as possible, connect C, R and the crystal oscillator at near the pin.
<1> Crystal oscillator
<2> Input from external clock directly
M66271FP
Figure 5 Oscillator Pin
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M66290AGP | UNIVERSAL SERIAL BUS CONTROLLER, PQFP48 |
| M66290AFP | UNIVERSAL SERIAL BUS CONTROLLER, PQFP48 |
| M66291GP | UNIVERSAL SERIAL BUS CONTROLLER, PQFP48 |
| M68HC08AZ0 | 8-BIT, EEPROM, 8 MHz, MICROCONTROLLER, PQFP100 |
| M69030 | GRAPHICS PROCESSOR, PBGA278 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M66272 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:LCD CONTROLLER with VRAM |
| M66272FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:LCD CONTROLLER with VRAM |
| M66273FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:LCD CONTROLLER with VRAM |
| M66280FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:5120 x 8-BIT LINE MEMORY |
| M66280FP(#TB0T) | 制造商:Renesas Electronics Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。