Renesas R61509V manual Display Control 3 R009h

R61509V																Target Spec
	Display Control 3 (R009h)
	R/W	RS	IB15	IB14	IB13	IB12	IB11	IB10	IB9	IB8	IB7	IB6	IB5	IB4	IB3	IB2	IB1	IB0
	R/W	1	0	0	0	0	PTV	PTS	0	0	0	0	0	0	0	0	0	0
	Default		0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1

PTS: Sets the source output level to drive non-display area. PTS also selects operation of grayscale amplifier and step-up clock frequency.

Table 15

		Source output in non-lit display area (Note)		Grayscale amplifier	Non-lit display area
PTS					Step-up clock frequency
				in operation
	Positive polarity		Negative polarity
0	V63	V0		V0 to V63	Register setting (DC0, DC1)
1	V63	V0		V0, V63	Register setting (DC0) x 1/2

Note: The power efficiency improved by halting grayscale amplifiers and slowing down the step-up clock frequency can be obtained in non-display drive period.

PTV: Sets the VCOM output in non-lit display area. When PTV=1, frame inversion in non-lit display area is selected.

Table 16

PTV VCOM operation in non-lit display drive period

0BC setting

1Frame inversion

Rev. 0.11 April 25, 2008, page 48 of 181