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HD6433846XXXH 参数 Datasheet PDF下载

HD6433846XXXH图片预览
型号: HD6433846XXXH
PDF下载: 下载PDF文件 查看货源
内容描述: 微控制器\n [Microcontroller ]
分类和应用: 微控制器外围集成电路时钟
文件页数/大小: 524 页 / 1465 K
品牌: ETC [ ETC ]
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13.2  
Register Descriptions  
13.2.1  
LCD Port Control Register (LPCR)  
Bit  
7
DTS1  
0
6
DTS0  
0
5
CMX  
0
4
3
SGS3  
0
2
SGS2  
0
1
SGS1  
0
0
SGS0  
0
SGX  
0
Initial value  
Read/Write  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
LPCR is an 8-bit read/write register which selects the duty cycle and LCD driver pin functions.  
LPCR is initialized to H'00 upon reset.  
Bits 7 to 5: Duty cycle select 1 and 0 (DTS1, DTS0), common function select (CMX)  
The combination of DTS1 and DTS0 selects static, 1/2, 1/3, or 1/4 duty. CMX specifies whether  
or not the same waveform is to be output from multiple pins to increase the common drive power  
when not all common pins are used because of the duty setting.  
Bit 7  
DTS1  
Bit 6  
DTS0  
Bit 5  
CMX  
Common  
Duty Cycle Drivers  
Notes  
0
0
0
Static  
COM1  
(initial value)  
Do not use COM4, COM3, and  
COM2.  
0
0
1
COM4 to COM1 COM4, COM3, and COM2 output  
the same waveform as COM1.  
0
0
1
1
0
1
1/2 duty  
COM2 to COM1 Do not use COM4 and COM3.  
COM4 to COM1 COM4 outputs the same waveform  
as COM3, and COM2 outputs the  
same waveform as COM1.  
1
1
1
1
0
0
1
1
0
1
0
1
1/3 duty  
1/4 duty  
COM3 to COM1 Do not use COM4.  
COM4 to COM1 Do not use COM4.  
COM4 to COM1  
346  
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