參數(shù)資料
型號: HD66726
廠商: Hitachi,Ltd.
英文描述: Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器)
中文描述: 圖形液晶顯示控制器/鍵掃描功能(帶鍵掃描功能的圖形液晶顯示控制器/驅(qū)動器驅(qū)動程序)
文件頁數(shù): 36/117頁
文件大?。?/td> 1549K
代理商: HD66726
HD66726
36
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
0
DB6 DB5 DB4 DB3 DB2 DB1
0
0
0
0
1
AMP SLP STB
Figure 8 Power Control Instruction
Contrast Control 1/2
SW:
Switches the bit configuration for the contrast control instruction. SW = 0 corresponds to CT4 to
CT0. SW = 1 corresponds to BT1/0 and BS2 to BS0.
CT4–CT0:
When SW = 0, they control the LCD drive voltage (potential difference between V1 and GND)
to adjust contrast. A 32-step adjustment is possible. For details, see the Contrast Adjuster section.
R/W RS DB7
DB0
0
0
DB6 DB5 DB4 DB3 DB2 DB1
0
0
0
1
0
SW
CT4 CT3
BT1 BT0
(SW = 0)
(SW = 1)
0
0
0
0
0
1
1
CT1 CT0
BS1 BS0
(SW = 0)
(SW = 1)
CT2
BS2
Figure 9 Contrast Control 1/2 Instruction
相關(guān)PDF資料
PDF描述
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)動器)
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HD66731 Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器)
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