參數(shù)資料
型號: HD66725
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): 46/117頁
文件大?。?/td> 834K
代理商: HD66725
HD66724/HD66725
46
Horizontal Scroll Control
SSE:
When SSE = 0, it selects SE2 and SE1 bits and when SSE = 1, it selects SE3 and SE4 bits.
SE3-1:
Specifies the horizontal smooth scroll display for a given line. When SE = 1, the first line is
displayed in a horizontal scroll. When SE = 1, the second line is displayed in a horizontal scroll. When SE
= 1, the third line is displayed in a horizontal scroll. When SE = 4, the fourth line is displayed in a
horizontal scroll. Horizontal scroll display of multiple lines is possible.
SQ2-0:
Shifts the line to which horizontal smooth scroll is specified by units of 3 dots, up to 21 dots, to the
left. For details, see the Horizontal Smooth Scroll section.
R/W RS DB7
DB0
0
0
DB6 DB5 DB4 DB3 DB2 DB1
0
1
0
1
1
SE2 SE1
SE4 SE3
0
0
0
1
1
0
0
SQ2 SQ1 SQ0
SSE
(SSE = 0)
(SSE = 1)
Figure 18 Horizontal Scroll Control Instruction
Table 25
SQ Bits and Display Start Line
SQ2
SQ1
SQ0
Display Start Line
0
0
0
Displayed with no shift
0
0
1
Displayed with 3 dots shifted to the left
0
1
0
Displayed with 6 dots shifted to the left
0
1
1
Displayed with 9 dots shifted to the left
1
0
0
Displayed with 12 dots shifted to the left
1
0
1
Displayed with 15 dots shifted to the left
1
1
0
Displayed with 18 dots shifted to the left
1
1
1
Displayed with 21 dots shifted to the left
Key Scan Control
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:
Sets the key scan cycle. The following table shows the key scan pulse width and key scan cycle
used when the oscillation frequency (fosc) is 32 kHz, which depend on the oscillation frequency. For
details, see the Key Scan Control section.
相關(guān)PDF資料
PDF描述
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)動器)
HD66728 112 x 80-dot Graphics LCD Controller/Driver(112 x 80點圖形LCD控制器)
HD66730 Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器)
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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