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): 42/133頁
文件大?。?/td> 2608K
代理商: HD66732
HD66732
42
Instruction Descriptions
Index Register (IR)
The index register designates control registers (R0 to RC), RAM address registers (RD and RE), and RAM
data register (RF). The register index value must be set between addresses 0000 to 1110.
R/W RS DB7
DB0
1
0
DB6 DB5 DB4 DB3 DB2 DB1
0
0
0
0
ID3
ID2
ID1
ID0
IR:
Figure 3 Index Register Instruction
Status Register (SR)
The status register reads the busy flag (BF), LCD-driven display lines (NF1/0), and display raster-rows
(LF3 to LF0).
In a serial interface, the SR reads the key scan data in key scan registers SCAN0 to SCAN3. After the start
byte has been transferred, the SR starts reading from SCAN0, then SCAN1, SCAN2, and SCAN3. After
SCAN3 has been read, SCAN0 is read again. For details, see the Key Scan Control section.
R/W RS DB7
DB0
1
0
DB6 DB5 DB4 DB3 DB2 DB1
LF3 LF2 LF1 LF0
0
NF0
NF1
BF
1
0
SD3 SD2 SD1 SD0
SD4
SD5
SD6
SD7
(Bus interface)
(Serial interface)
SR:
SR:
Figure 4 Status Register Instruction
Table 25 Display Line Position
NF1
NF0
Display Line Position
0
0
Displaying the 1st line
0
1
Displaying the 2nd line
1
0
Displaying the 3rd line
1
1
Displaying the 4th line
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