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參數(shù)資料
| 型號： | HD66420 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| 中文描述： | （內(nèi)存提供160通道4級灰度的點陣圖形液晶顯示驅(qū)動程序） |
| 文件頁數(shù)： | 10/52頁 |
| 文件大?。?/td> | 167K |
| 代理商： | HD66420 |
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HD66420
10
MPU Interface
The HD66420 can interface directly to an MPU through an 8-bit data bus or through an I/O port (figure 2).
The MPU can access the HD66420 internal registers independently of internal clock timing.
The index register can be directly accessed but the other registers (data registers) cannot. Before accessing
a data register, its register number must be written to the index register. Once written, the register number is
held until it is rewritten, enabling the same register to be consecutively accessed without having to rewrite
to the register number for each access. An example of a register access sequence is shown in figure 3.
C0
C1
C2
C3
A0 - A7
CS
RS
RD
WR
DB0 - DB7
H8/325
HD66420
8
a) Interface through Bus
A15 - A0
A0
RD
WR
D0 - D7
CS
RS
RD
WR
DB0 - DB7
Z80
HD66420
8
b) Interface through I/O Port
decoder
Figure 2 8-Bit MPU Interface Examples
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66420TA0 | LCD Display Driver |
| HD66421 | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| HD66421TB0 | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| HD66503 | 240-Channel Common Driver with Internal LCD Timing Circuit(帶內(nèi)部LCD定時電路的240通道驅(qū)動器) |
| HD66520T | 160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM(點陣圖形LCD160通道驅(qū)動器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66420TA0 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:LCD Display Driver |
| HD66421 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| HD66421TB0 | 制造商:Renesas Electronics Corporation 功能描述: |
| HD66503 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66520 | 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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