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參數(shù)資料
| 型號(hào)： | UPD75316A |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCOMPUTER |
| 中文描述： | 4位單片機(jī) |
| 文件頁數(shù)： | 29/62頁 |
| 文件大?。?/td> | 577K |
| 代理商： | UPD75316A |
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μ
PD75312(A), 75316(A)
29
5.8
LCD CONTROLLER/DRIVER
The
μ
PD75316(A) is provided with a display controller that generates segment and common signals and
a segment driver and a common driver that can directly drive an LCD panel.
Figure 5-7 shows the LCD controller/driver configuration.
These LCD controller and drivers have the following functions:
Generate segment and common signals by automatically reading the display data memory by means of
DMA
Five display modes selectable
Static
1/2 duty (1/2 bias)
1/3 duty (1/2 bias)
1/3 duty (1/3 bias)
1/4 duty (1/3 bias)
Four types of frame frequencies selectable in each display mode
Up to 32 segment signals (S0-S31) and four common signals (COM0-COM3) can be output.
Four segment signal output pins (S24-S27, S28-S31) can be used as an output port (BP0-BP3, BP4-BP7).
Dividing resistor for LCD driving power source can be provided (by mask option).
All bias modes and LCD drive voltages can be used.
Current flowing to dividing resistor can be cut when display is off.
Display data memory not used for display can be used as ordinary data memory.
Can also operate on subsystem clock.
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