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H838532H Datasheet(PDF) 388 Page - Renesas Technology Corp

Part # H838532H
Description  16-Bit Single-Chip Microcomputer H8 Family / H8/300H Super Low Power Series
PDF  508 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H838532H Datasheet(HTML) 388 Page - Renesas Technology Corp

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Section 13 LCD Controller/Driver
Rev. 1.00 May 30, 2008 Page 368 of 484
REJ09B0436-0100
13.2
Register Descriptions
13.2.1
LCD Port Control Register (LPCR)
Bit
Initial value
Read/Write
7
DTS1
0
R/W
6
DTS0
0
R/W
5
CMX
0
R/W
4
—
0
W
3
SGS3
0
R/W
0
SGS0
0
R/W
2
SGS2
0
R/W
1
SGS1
0
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
Duty Cycle
Common Drivers
Notes
0
0
0
Static
COM
1 (initial value)
Do not use COM
4, COM3, and
COM
2.
1
COM
4 to COM1
COM
4, COM3, and COM2 output the
same waveform as COM
1.
0
1
0
1/2 duty
COM
2 to COM1
Do not use COM
4 and COM3.
1
COM
4 to COM1
COM
4 outputs the same waveform
as COM
3, and COM2 outputs the
same waveform as COM
1.
1
0
0
1/3 duty
COM
3 to COM1
Do not use COM
4.
1
COM
4 to COM1
Do not use COM
4.
1
1
0
1/4 duty
COM
4 to COM1
—
1



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