Avalue ESM-QM77 - Manual (Page 27)

User ’s Manual
ESM-QM77 User ’s Manual 27
2.4.2.1.10 VGA Signals
Signal Signal Description
VGA_RED Red for monitor. Analog DAC output.
VGA_GRN Green for monitor. Analog DAC output.
VGA_BLU Blue for monitor. Analog DAC output.
VGA_HSYNC Horizontal sync output to VGA monitor
VGA_VSYNC Vertical sync output to VGA monitor
VGA_ I
2
C_CK DDC clock line (I2C port dedicated to identify VGA monitor capabilities)
VGA_ I
2
C_DAT DDC data line.
2.4.2.1.11 USB Signals
Signal Signal Description
USB[0:7] +/- USB differential pairs, channels 0 through 7
USB_0_1_OC# USB over-current sense, USB channels 0 and 1
USB_2_3_OC# USB over-current sense, USB channels 2 and 3
USB_4_5_OC# USB over-current sense, USB channels 4 and 5
USB_6_7_OC# USB over-current sense, USB channels 6 and 7
2.4.2.1.12 LVDS Flat Panel Signals
Signal Signal Description
LVDS_A[0:3] +
LVDS_A[0:3] -
LVDS Channel A differential pairs
LVDS_A_CK +
LVDS_A_CK -
LVDS Channel A differential clock
LVDS_B[0:3] +
LVDS_B[0:3] -
LVDS Channel B differential pairs
LVDS_B_CK +
LVDS_B_CK -
LVDS Channel B differential clock
LVDS_VDD_EN LVDS panel power enable
LVDS_BKLT_EN LVDS panel backlight enable
LVDS_BKLT_CTRL LVDS panel backlight brightness control
LVDS_ I
2
C _CK I
2
C clock output for LVDS display use
LVDS_ I
2
C _DAT I
2
C data line for LVDS display use