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參數(shù)資料
| 型號： | HD66732 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Graphics Liquid Crystal Display Controller/Driver Supporting JIS Level-1 and Level-2 Kanji ROM(圖形LCD控制器/驅(qū)動器) |
| 中文描述： | 圖形液晶顯示控制器/驅(qū)動器支持日標(biāo)級- 1和第2級漢字光盤（圖形液晶顯示控制器/驅(qū)動器） |
| 文件頁數(shù)： | 48/133頁 |
| 文件大?。?/td> | 2608K |
| 代理商： | HD66732 |
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HD66732
48
STB:
When STB = 1, the HD66732 enters the standby mode, where display operation and key scan
completely stops, halting all the internal operations including the internal R-C oscillator. Further, no
external clock pulses are supplied. This setting can be used as the system wake-up, because an interrupt is
generated when a specific key is pressed. For details, see the Standby Mode section.
Only the following instructions can be executed during the standby mode.
a. Standby mode cancel (STB = 0)
b. Voltage follower circuit on/off (AMP = 1/0)
c. Start oscillation
d. Key scan interrupt generation enabled/disabled (IRE = 1/0)
e. Port control (PT2-0 bits)
During the standby mode, the other RAM data and instructions may be lost. To prevent this, they must be
set again after the standby mode is canceled.
R/W RS DB7
DB0
0
1
DB6 DB5 DB4 DB3 DB2 DB1
AMP
0
BT1 BT0
0
0
SLP STB
R5:
Figure 11 Power Control Instruction
Key Scan Control (R6)
PT2-0:
Control the output level of a port output pin (PORT2-PORT0). When PT0 = 0, the PORT0 pin
outputs the GND level, and when PT0 = 1, it outputs the VCC level. Similarly, PT1 and PT2 bits control
PORT1 and PORT2 output levels respectively.
KSB:
When KSB = "1", the mode enters key standby and the key scan is stopped. In this case, key scan
interrupts can be generated as well as in the standby mode. When KSB = "0", the keys are scanned
normally.
IRE:
When IRE = 1, it permits interrupts when a key is pressed. This causes interrupts to occur in the
standby period when the oscillator clock is halted, as well as key scan interrupts during normal operation,
allowing system wake-up.
KF1-0:
Set the key scan cycle. The following table shows the key scan pulse width and key scan cycle
used when the oscillation frequency (fosc) is 60 kHz, which depend on the oscillation frequency. For
details, see the Key Scan Control section.
R/W RS DB7
DB0
0
1
DB6 DB5 DB4 DB3 DB2 DB1
0
PT2 PT1 PT0 KSB
KF1 KF0
IRE
R6:
Figure 12 Key Scan Control Instruction
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66740TB0 | 50/MDR/RECP/VERT PRS FIT/M2.6/SCW/30MIN |
| HD66740WTB0 | 112 x 80-dot Graphics LCD Controller/Driver |
| HD66751 | 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions |
| HD66750TB0 | 122 x 32 pixel format, Compact LCD size |
| HD66750 | 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66735 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HD66735 Procedure for setting Standby/Sleep/Display off mode. Technical Update/Device |
| HD66740 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HD66740TB0 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver |
| HD66740WTB0 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver |
| HD66741 | 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 |
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