參數(shù)資料
型號(hào)： HD66701
廠商： Hitachi,Ltd.
英文描述： Dot Matrix Liquid Crystal Display Controller/Driver(點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器)
中文描述： 點(diǎn)陣式液晶顯示控制器/驅(qū)動(dòng)器（點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器）
文件頁數(shù)： 20/69頁
文件大?。?/td> 352K
代理商： HD66701
HD66702/HD66701
20
Character Generator ROM (CGROM)
The character generator ROM generates 5
×
7 dot or 5
×
10 dot character patterns from 8-bit character
codes (Table 5). It can generate 160 5
×
7 dot character patterns and 32 5
×
10 dot character patterns. User-
defined character patterns are also available by mask-programmed ROM.
Character Generator RAM (CGRAM)
In the character generator RAM, the user can rewrite character patterns by program. For 5
×
7 dots, eight
character patterns can be written, and for 5
×
10 dots, four character patterns can be written.
Write the character codes at the addresses shown as the left column of Table 5 to show the character
patterns stored in CGRAM.
See Table 6 for the relationship between CGRAM addresses and data and display patterns.
Areas that are not used for display can be used as general data RAM.
Modifying Character Patterns
Character pattern development procedure
The following operations correspond to the numbers listed in Figure 7:
1. Determine the correspondence between character codes and character patterns.
2. Create a listing indicating the correspondence between EPROM addresses and data.
3. Program the character patterns into the EPROM.
4. Send the EPROM to Hitachi.
5. Computer processing on the EPROM is performed at Hitachi to create a character pattern listing, which
is sent to the user.
6. If there are no problems within the character pattern listing, a trial LSI is created at Hitachi and samples
are sent to the user for evaluation. When it is confirmed by the user that the character patterns are
correctly written, mass production of the LSI proceeds at Hitachi.
相關(guān)PDF資料
PDF描述
HD66702 Dot Matrix Liquid Crystal Display Controller/Driver(點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器)
HD66702R Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
HD66727A04TA0L Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
HD66720 Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
HD66727A03TA0L Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66702 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66702R 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
HD66702RA00F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66702RA00FL 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66702RA01F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
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