Avalue ESM-QM87 - Manual (Page 27)

Quick Installation Guide
ESM-QM87 Quick Installation Guide 27
2.4.2.1.10 SATA Signals
Signal Signal Description
SATA[0:3]_TX +/- Serial ATA Channel 0-3 transmit differential pair.
SATA[0:3]_RX +/- Serial ATA Channel 0-3receive differential pair.
ATA_ACT# ATA (parallel and serial) activity indicator, active low.
2.4.2.1.11 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.
2.4.2.1.12 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