Hitachi CM650ET user manual Vga, Vesa

Microprocessor-based preset functions can store 26 sets of geometry settings including

the standard settings.					The following industrial standard settings have been pre-				1!
programmed by the factory.									-
									-
	No.		Video Mode Name			Horizontal		Video Mode
		(with Resolution and Vertical Frequency)				Frequency
	1	VGA	640 x 400- 70 Hz			31.47 kHz		VGA
	2	VESA 640 X 400- 85 Hz				37.86 kHz		VESA
	3	VESA 800 X 600- 85 Hz				53.67 kHz		VESA
	4	VESA	1024	x	768- 75 Hz	60.02	kHz	VESA
	5	VESA	1024	X	768- 85 Hz	68.68	kHz	VESA
	6	VESA	1152	X	864- 75 Hz	67.50	kHz	VESA

NOTE :

nInput signals with approximately the same frequencies may be regarded as the same signal.

nThe following horizontal timing conditions are recommended (at sync. H, V separate or H/V composite).

for 31 kHz - 45 kHz horizontal frequency:

Horizontal front porch should be more than 0.1 vs. Horizontal sync. width should be within 1 .O - 3.8 l.~. Horizontal back porch should be more than 1.2 ps.

Horizontal blanking width should be more than 3.5 ps.

for 45 kHz - 69 kHz horizontal frequency:

Horizontal front porch should be more than 0.1 vs. Horizontal sync. width should be within 1 .O - 3.0 ps. Horizontal back porch should be more than 1 .I ps.

Horizontal blanking width should be more than 3.0 p.s.

nThe following vertical timing conditions are recommended. Vertical front porch should be more than 10 ps. Vertical sync. width should be less than 200 ps. Vertical back porch should be more than 400 ps. Vertical blanking width should be more than 500 ps.

nIn case the front or back porch is extremely long, or the data display time is extremely short, it may not be able to set the expected size and position.

nStandard settings are subject to change without notice.

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