Signal Description - Icop VEX-SOM User Manual

VEX-SOM

2.6 Signal Description

System (2pins)
PIN# Function
A48 RESET-
A46 PCIRST-
USB interface (4 pins)
PIN# Function
A21 USBD1-
A23 USBD1+
A22 USBD2-
A24 USBD2+
PCIe interface (6 pins)
PIN# Function
A42 PE0_RX-
A44 PE0_RX+
A41 PE0_TX-
A43 PE0_TX+
A45 PE0_CLK-
A47 PE0_CLK+
SATA interface (4 pins)
PIN# Function
A37 SATA_TX-
A39 SATA_TX+
A38 SATA_RX-
A40 SATA_RX+
ICOP Technology Inc.
TYPE
System Reset. This pin is used to reset system. When it
I is asserted low, the board will reset . This pin is low
PCI Reset. This pin is used to reset PCI devices. When
O it is asserted low, all the PCI devices will be reset. This
TYPE
Universal Serial Bus Controller 0 Port 1. These are the
I/O serial data pair for USB Port 1. 15kΩ pull down
resistors are connected to DP and DM internally.
Universal Serial Bus Controller 0 Port 2. These are the
I/O serial data pair for USB Port 2. 15kΩ pull down
resistors are connected to DP and DM internally.
TYPE
PCI-E Differential serial data input. +: positive;
I
-:negative
PCI-E Differential serial data output. +: positive; -:
O
negative
PCI-E Differential Clock 100MHz from Internal PLL
O
+: positive; -: negative
TYPE
Serial ATA Device Controller TX Port. These are the
O
serial ATA Transmiter pair for Serial ATA Device.
Serial ATA Device Controller RX Port. These are the
I
serial ATA Receive pair for Serial ATA Device.
Description
active.
pin is low active,3.3V I/O pad.
Description
Description
Description
User Manual
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