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參數(shù)資料
| 型號(hào)： | HD66841 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | LVIC-II (LCD Video Interface Controller)(LCD視頻控制器) |
| 中文描述： | LVIC - 2（液晶視頻接口控制器）（液晶顯示視頻控制器） |
| 文件頁數(shù)： | 42/62頁 |
| 文件大?。?/td> | 185K |
| 代理商： | HD66841 |
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HD66841
42
Reset
The
RES
signal resets and starts the LVIC-II. The reset signal must be held low for at least 1
μ
s after
power-on.
Reset is defined as shown in Figure 31.
State of Pins after Reset
In principle, the
RES
signal does not control output signals and it operates regardless of other input signals.
Output signals can be classified into the following five groups, depending on their reset states:
Retains pre-reset state: CL2, A0–A4
Driven to high-impedance state (or fixed low if no memory is used): RD0–RD7, GD0–GD7, BD0–BD7
Fixed high:
MWE
, CL4, M,
CU
,
CD
,
MCS1
Fixed low: MA0–MA12, R0–R3, G0–G3, B0–B3, CL3, FLM
Fixed high or low, depending on the memory used (Table 14): MA13–MA15,
MCS0
State of Registers after Reset
The
RES
signal does not affect data register contents, so the MPU can both read from and write to data
registers, even after reset. Registers will retain their pre-reset contents until they are rewritten.
The HD66841’s palette registers, are usually set to their default values by a reset. For the default values,
refer to the Gray-Scale Palette section and Table 12.
Memory Clear Function
After a reset, the HD66841 writes 0s in the memory area specified by pins or register bits MS0 and MS1
(Table 8).
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| HD68000Y-12 | MPU(MICRO PROCESSING UNIT) |
| HD68HC000Y-12 | MPU(MICRO PROCESSING UNIT) |
| HD68000Y-8 | MPU(MICRO PROCESSING UNIT) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66841FP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Controller |
| HD66841FS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Controller |
| HD66850FP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Controller |
| HD6788 | 制造商:Coilcraft Inc 功能描述:DSL transformer, for Brooktree BT8921, not RoHS |
| HD6789 | 制造商:Coilcraft Inc 功能描述:DSL transformer, for Brooktree BT8921, not RoHS |
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