Ampro Corporation COM 830 manual Commen

Chapter 3				Signals and Pinout Tables
Table 3-9. CRT Signal Descriptions (Continued)
	VGA_BLU	Blue for monitor. Analog DAC output,	O	PD 150R	Analog output
		designed to drive a 37.5-Ohm equivalent load.	Analog
	VGA_HSYN	Horizontal sync output to VGA monitor	O 3.3V
	C
	VGA_VSYN	Vertical sync output to VGA monitor	O 3.3V
	C
	VGA_I2C_C	DDC clock line (I²C port dedicated to identify	I/O 5V	PU 2k2
	K	VGA monitor capabilities)		5V
	VGA_I2C_D	DDC data line.	I/O 5V	PU 2k2
	AT			5V

Table 3-10. LVDS Signal Descriptions

Signal	Description	I/O	PU/PD	Comment
LVDS_A[0:3]+	LVDS Channel A differential pairs	O
LVDS_A[0:3]-		LVDS
LVDS_A_CK+	LVDS Channel A differential clock	O
LVDS_A_CK-		LVDS
LVDS_B[0:3]+	LVDS Channel B differential pairs	O
LVDS_B[0:3]-		LVDS
LVDS_B_CK+	LVDS Channel B differential clock	O
LVDS_B_CK-		LVDS
LVDS_VDD_EN	LVDS panel power enable	O 3.3V	PD 10k
LVDS_BKLT_E	LVDS panel backlight enable	O 3.3V
N
LVDS_BKLT_C	LVDS panel backlight brightness	O 3.3V
TRL	control
LVDS_I2C_CK	DDC lines used for flat panel detection	O 3.3V	PU 2k2
	and control.		3.3V
LVDS_I2C_DAT	DDC lines used for flat panel detection	I/O	PU 2k2
	and control.	3.3V	3.3V

Table 3-11. TV-Out Signal Descriptions

Signal	Description	I/O	PU/PD	Commen
				t
TV_DAC_A	TVDAC Channel A Output supports the	O	PD 150R	Analog
	following: Composite video: CVBS	Analog		output
	Component video: Chrominance (Pb) analog
	signal
	S-Video: not used

32 Reference Manual COM 830