參數(shù)資料
型號(hào)： 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(dòng)器)
中文描述： 圖形液晶顯示控制器/驅(qū)動(dòng)器支持日標(biāo)級(jí)- 1和第2級(jí)漢字光盤（圖形液晶顯示控制器/驅(qū)動(dòng)器）
文件頁數(shù)： 49/133頁
文件大小： 2608K
代理商： HD66732
HD66732
49
Table 30
KF Bits and Key Scan Cycle
KF1
KF0
Key Scan Pulse Width
Key Scan Cycle
0
0
0.25 ms
1.1 ms (64 clock cycles)
0
1
0.5 ms
2.1 ms (128 clock cycles)
1
0
1.1 ms
4.3 ms (256 clock cycles)
1
Note:
1
2.1 ms
8.5 ms (512 clock cycles)
The data is a value obtained when the oscillation frequency (fosc) is 60 kHz. The value depends on
the oscillation frequency.
Entry Mode (R7)
REV:
When REV = "1", the REV displays all character and graphics display sections except for the
segment display section with black-white reversal. For details, see the Reversed Display Function section.
SPR:
When SPR = "1", the SPR displays combined character and graphics display screens (the super-
imposed display mode). In this case, user fonts using the CGRAM in the character display mode cannot be
displayed. For details, see the Super-imposed Display Function section.
GR:
Activates the character mode when GR = “0”. Displays the font pattern on the CGROM or CGRAM
according to the character code written in the DDRAM. Activates the graphics mode when GR = 1.
Displays a given pattern according to the bit map data written in the CGRAM. In this case, data in the
DDRAM is not used for display. Segment pattern display set to the SEGRAM is enabled both in the
character mode and graphics mode. For details, see the Character Display Functions and Graphics Display
Functions section.
RDM:
When RDM = "0", the RDM increments or decrements the address counter value according to the
I/D bit setting after reading the data from the DDRAM/CGRAM/SEGRAM. When RDM = "1", the
address counter is not updated after the data has been read from the RAM. The address counter is used
when the RAM data is read, modified, and written. Since the first read data is invalid, the read must be
done twice. After writing to the RAM, the address counter value must be incremented or decremented.
I/D:
Increments (I/D = 1) or decrements (I/D = 0) the DDRAM address by 1 when a character code is
written into or read from DDRAM. The cursor or blinking moves to the right when incremented by 1 and
to the left when decremented by 1. The same applies to the writing and reading of CGRAM and SEGRAM.
R/W RS DB7
DB0
0
1
DB6 DB5 DB4 DB3 DB2 DB1
0
0
0
REV SPR
RDM I/D
GR
R7:
Figure 13 Entry Mode Set 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
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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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