2. I/O Interface¶
The VIA VAB-1000 has a wide selection of interfaces integrated into the board. It includes a selection of frequently used ports as part of the rear I/O coastline.
2.1. Rear I/O Ports¶
Figure 1: Rear I/O ports
Layout diagram description table of Rear I/O ports:
| Item | Description |
|---|---|
| 1 | CN1: DC-In jack |
| 2 | SD1: Micro SD card slot |
| 3 | USB1: Mini USB 2.0 port |
| 4 | HDMIO1: HDMI Out port |
| 5 | HDMIIN1: HDMI In port |
| 6 | LAN1: RJ-45 LAN port |
2.1.1. DC-In Jack¶
The mainboard comes with a DC power input jack on the rear I/O panel adjacent to the Micro SD slot. The power connector carriers +12V DC external power input. The specifications and pinout of power connector are shown below.
Figure 2: DC-In jack diagram
DC-In jack specifications:
| Spec | Value |
|---|---|
| Outer Diameter | 3.7 mm |
| Inner Diameter | 1.3 mm |
| Barrel Depth | 8.25 mm |
| Input Voltage | 12V |
2.1.2. Micro SD Card Slot¶
The mainboard comes with a Micro SD card slot located on the rear I/O panel. Micro SD card slot offers expandable storage
Figure 3: Micro SD Card slot diagram
Micro SD Card slot pinout:
| Pin | Signal |
|---|---|
| 1 | SD0DATA2 |
| 2 | SD0DATA3 |
| 3 | SD0CMD |
| 4 | VDD (3.3V) |
| 5 | SD0CLK |
| 6 | GND |
| 7 | SD0DATA0 |
| 8 | SD0DATA1 |
| 9 | SD0_CD |
2.1.3. Mini USB 2.0 Port¶
There are two integrated Mini USB 2.0 ports located on the rear I/O panel. The Mini USB 2.0 interface port gives complete Plug and Play and hot swap capability for external devices and it complies with USB UHCI, rev. 2.0. Each Mini USB port uses the USB Type AB receptacle port connector. The pinout of the typical Mini USB port is shown below.
Figure 4: Mini USB port diagram
Mini USB 2.0 port pinout:
| Pin | Signal |
|---|---|
| 1 | VCC (+5V) |
| 2 | USBH1- |
| 3 | USBH1+ |
| 4 | ID (GND) |
| 5 | GND |
2.1.4. HDMI Out Port¶
The HDMI® Out port is used to connect high definition video and digital audio using a single cable. It allows connecting the digital video devices which utilize a high definition video signal. The HDMI Out port uses an HDMI
Type C receptacle connector as defined in the HDMI specification. The pinout of the HDMI® Out port is shown below.
Figure 5: HDMI® Out port diagram
HDMI® Out port pinout:
| Pin | Signal |
|---|---|
| 1 | TMDS Data2 Shield |
| 2 | TMDS Data2+ |
| 3 | TMDS Data2- |
| 4 | TMDS Data1 Shield |
| 5 | TMDS Data1+ |
| 6 | TMDS Data1- |
| 7 | TMDS Data0 Shield |
| 8 | TMDS Data0+ |
| 9 | TMDS Data0- |
| 10 | TMDS Clock Shield |
| 11 | TMDS Clock+ |
| 12 | TMDS Clock- |
| 13 | DDC/CEC Ground |
| 14 | CEC |
| 15 | SCL |
| 16 | SDA |
| 17 | Reserved |
| 18 | +5V Power |
| 19 | Hot Plug Detect |
2.1.5. HDMI ® In Port The HDMI ® In port is used for connecting an external digital/video sources such as HD-DVD player, Blu-ray players, satellite boxes and etc. The HDMI In port uses an HDMI Type C receptacle connector as defined in the HDMI specification. The pinout of the HDMI ® In port is shown below.
Figure 6: HDMI® In port diagram
HDMI® In port pinout:
| Pin | Signal |
|---|---|
| 1 | TMDS Data2 Shield |
| 2 | TMDS Data2+ |
| 3 | TMDS Data2- |
| 4 | TMDS Data1 Shield |
| 5 | TMDS Data1+ |
| 6 | TMDS Data1- |
| 7 | TMDS Data0 Shield |
| 8 | TMDS Data0+ |
| 9 | TMDS Data0- |
| 10 | TMDS Clock Shield |
| 11 | TMDS Clock+ |
| 12 | TMDS Clock- |
| 13 | DDC/CEC Ground |
| 14 | CEC |
| 15 | SCL |
| 16 | SDA |
| 17 | Reserved |
| 18 | +5V Power |
| 19 | Hot Plug Detect |
2.1.5. RJ-45 LAN port (Gigabit Ethernet)¶
The VAB-1000 is equipped with a Gigabit Ethernet LAN port. The Gigabit Ethernet LAN port is using 8 Position 8 Contact (8P8C) receptacle connector or commonly referred to as RJ-45. It is fully compliant with IEEE 802.3 (10BASE-T), 802.3u (100BASE-TX), and 802.3ab (1000BASE-T) standards. The pinout of the LAN port is shown below.
Figure 7: RJ-45 LAN port diagram
RJ-45 LAN port pinout:
| Pin | Signal |
|---|---|
| 1 | LAN1_TD0+ |
| 2 | LAN1_TD0- |
| 3 | LAN1_TD1+ |
| 4 | LAN1_TD1- |
| 5 | LAN1_TD2+ |
| 6 | LAN1_TD2- |
| 7 | LAN1_TD3+ |
| 8 | LAN1_TD3- |
The LAN port has two individual LED indicators located on the front side to show its Active/Link status and Speed status. RJ-45 LAN port color LED definition:
| Mode | Left LED | Right LED |
|---|---|---|
| Link Off | Off | Off |
| Speed_10Mbit | The LED is On in Green color (flash) | Off |
| Speed_100Mbit | The LED is On in Red color (flash) | Off |
| Speed_1000Mbit | Off | The LED is On in Orange color(flash) |
2.2. Onboard Connectors¶
2.2.1. RTC Battery Connector¶
The mainboard is equipped with onboard RTC battery connector used for connecting the external cable battery that provides power to the 32.768KHz crystal oscillator for Real Time Clock (RTC). The RTC battery connector is labeled as BAT1. The connector pinout is shown below.
Figure 8: RTC Battery connector diagram
RTC Battery connector pinout:
| Pin | Signal |
|---|---|
| 1 | VBAT |
| 2 | GND |
2.2.2. SATA Connector¶
The SATA connector on board can support up to 3 Gb/s transfer speeds. The SATA connector is labeled as SATA1 and it can support 2.5” SATA SSD. The pinout of the SATA connector is shown below.
Figure 9: SATA connector diagram
SATA connector pinout:
| Pin | Signal |
|---|---|
| 1 | GND |
| 2 | STXP_1 |
| 3 | STXN_1 |
| 4 | GND |
| 5 | SRXN_1 |
| 6 | SRXP_1 |
| 7 | GND |
2.2.3. SATA Power Connector¶
The VAB-1000 is equipped with 3-pin SATA power connector used for connecting SATA SSD power cable to power 2.5” SATA SSD. When connecting the SATA SSD power cable, make sure the power plug is inserted in the proper orientation and pins are properly aligned. The SATA power connector is labeled as PWR1. The pinout of the SATA power connector is shown below.
Figure 10: SATA SSD power connector diagram
SATA SSD power connector pinout:
| Pin | Signal |
|---|---|
| 1 | VDD5V |
| 2 | VDD12V |
| 3 | GND |
2.2.4. SPI Flash Connector¶
The mainboard has one 8-pin SPI flash connector. The SPI (Serial Peripheral Interface) flash connector is used to update the Boot Leader EEPROM. The connector is labeled as JSF1. The pinout of the connector is shown below.
Figure 11: SPI Flash connector diagram
SPI Flash connector pinout:
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | VDD33_SF (VDD33_SPI VDD) | 2 | GND |
| 3 | SF_CS0- | 4 | SF_CLK |
| 5 | SF_MISO | 6 | SF_MOSI |
| 7 | No Connect | 8 | No Connect |
2.2.5. WLAN Connector¶
The mainboard has a WLAN connector labeled as WLAN1. The WLAN connector is used to attach WLAN USB module to provide WiFi connectivity. The pinout of the connector is shown below.
Figure 12: WLAN connector diagram
WLAN connector pinout:
| Pin | Signal |
|---|---|
| 1 | NC |
| 2 | WLAN_LED |
| 3 | GND |
| 4 | USBH1_C_2DP_1 |
| 5 | USBH1_C_20M_1 |
| 6 | VCC_USB1 |
Note
WLAN connector shares the same USB signal port with Mini PCIe. Whenever the WLAN is connected, Mini PCIe is automatically disabled, and vice versa. Please refer to Miscellaneous Select Jumper.
2.2.6. VGA Pin Header¶
The mainboard has one 2 x 6-pin VGA pin header for CRT display. The pin header is labeled as VGA1. The pinout of the connector is shown below.
Figure 13: VGA pin header diagram
VGA pin header pinout:
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | VGA_R | 2 | 5VCRT |
| 3 | VGA_G | 4 | GND |
| 5 | VGA_B | 6 | VGA_SDA |
| 7 | GND | 8 | VGA_SCL |
| 9 | NC | 10 | VGA_VSYNC |
| 11 | VGA_HSYNC | 12 | GND |
Note
This function is reserved for factory production only.
2.2.7. Front Audio Pin Header¶
The mainboard has a front audio pin header for connecting the Line-Out, Line- In and Mic-In jacks. The pin header is labeled as CN6. The pinout of the pin header is shown below.
Figure 14: Front audio pin header diagram
Front audio pin header pinout
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | LINEIN_R | 2 | AUD_GND |
| 3 | LINEIN_L | 4 | MICIN1 |
| 5 | LINEOUT_R | 6 | MICIN2 |
| 7 | LINEOUT_L | 8 | HP_DET- |
2.2.8. Front Panel, USB 2.0 and COM Combination Pin Header¶
The mainboard includes one Front Panel, USB2.0 and COM combination pin header block labeled as CN7. The front panel, USB2.0 and COM combination pin header is used to connect the power switch, reset switch, power LED, suspend LED, SSD LED, case speaker, additional USB 2.0 port and RS232/Console port. The pinout of the pin header is shown below.
Figure 15: Front Panel, USB 2.0 and COM combination pin header diagram
Front Panel, USB 2.0 and COM combination pin header pinout:
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | PWR_LED (Series 470 ohm resistance) | 2 | VDD33_SUS/0.5A |
| 3 | PWR_BUTTON# | 4 | GND |
| 5 | RESET_GD | 6 | GND |
| 7 | -HD_LED1 (Series 470 ohm resistance) | 8 | VDD50/0.5A |
| 9 | VCC_USB2/0.5A | 10 | VCC_USB3/0.5A |
| 11 | USBH2_C_DM | 12 | USBH3_C_DM |
| 13 | USBH2_C_DP | 14 | USBH3_C_DP |
| 15 | GND | 16 | GND |
| 17 | DTE1_TXD_C | 18 | DTE1_RXD_C |
| 19 | HWTP_1 | 20 | USBH123_SW |
2.2.9. COM and I2C Combination Pin Header¶
The COM and I2C combination pin header block labeled as CN8 is used for connecting I2C device and additional COM connector that supports Tx/Rx. The pinout of the pin header is shown below.
Figure 16: COM and I2C combination pin header diagram
COM and I2C combination pin header pinout:
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | VDD33_SUS/0.5A | 2 | VDD33/0.5A |
| 3 | DTE0_TXD_C | 4 | NC |
| 5 | DTE0_RXD_C | 6 | NC |
| 7 | GND | 8 | I2C0_SCL(IPU to VDD33) |
| 9 | DTE2_TXD_C | 10 | I2C0_SDA(IPU to VDD33) |
| 11 | DTE2_RXD_C | 12 | I2C1_SCL(IPU to VDD33) |
| 13 | GND | 14 | I2C1_SDA(IPU to VDD33) |
| 15 | PMIC_CONF_SCL | 16 | PMIC_CONF_SDA |
2.2.10. SPI and GPIO Combination Pin Header¶
The SPI and GPIO combination pin header block labeled as CN9 is used for connecting SPI device, and General Purpose Input and Output. The pinout of the pin header is shown below.
Figure 17: SPI and GPIO pin header diagram
SPI and GPIO pin header pinout:
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | VDD3318_DVP (for GFX GPIO Power)/100mA | 2 | VDD50_SUS/0.5A |
| 3 | GND | 4 | VDD33 For GPIO Power)/0.5A |
| 5 | GFX_GPIO11 (Graphics GPIO11) | 6 | SPI1_CLK : SPI1 Host Interface Clock, GPIO5 |
| 7 | GFX_GPIO12 (Graphics GPIO12) | 8 | SPI1_MISO : SPI1 Host Interface Master Input, Slave Output, GPIO6 |
| 9 | GFX_GPIO13 (Graphics GPIO13) | 10 | SPI1_MOSI :SPI1 Host Interface Master Output, Slave Input, GPIO7 |
| 11 | GFX_GPIO14 (Graphics GPIO14) | 12 | SPI1 Host Interface Slave Select Active-low, GPIO8 |
| 13 | GND | 14 | GND |
2.2.11. JTAG Connector¶
The JTAG connector provides a set of JTAG signals that allow JTAG debugging equipment to be used. The connector is labeled as JTAG1. The pinout of the connector is shown below.
Figure 18: JTAG connector diagram
JTAG connector pinout:
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | GND | 2 | NC |
| 3 | JTAG_TRST# | 4 | JTAG_TD0 |
| 5 | JTAG_TDI | 6 | JTAG_TMS |
| 7 | JTAG_TCK | 8 | VDD33 |
2.2.12. LVDS Connector¶
The mainboard has one LVDS connector on the bottom side of the board. The LVDS connector can connect the panel’s LVDS cable to support the dual-channel 18-bit/24-bit display. The LVDS connector is labeled as LVDS1. The pinout of the connector is shown below.
LVDS connector pinout:
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | PVDD1 (for Panel VDD +5V or +3.3V) | 2 | PVDD1 (for Panel VDD +5V or +3.3V) |
| 3 | PVDD1 (for Panel VDD +5V or +3.3V) | 4 | VDD50 |
| 5 | VDD50 | 6 | VDD_BL (for Panel BL +12V or +5V) |
| 7 | VDD_BL (for Panel BL +12V or +5V) | 8 | VDD_BL (for Panel BL +12V or +5V) |
| 9 | GND | 10 | A0M1 |
| 11 | A0P1 | 12 | GND |
| 13 | A1M1 | 14 | A1P1 |
| 15 | GND | 16 | A2M1 |
| 17 | A2P1 | 18 | GND |
| 19 | A3M1 | 20 | A3P1 |
| 21 | GND | 22 | CLK1M1 |
| 23 | CLK1P1 | 24 | GND |
| 25 | A4M1 | 26 | A4P1 |
| 27 | GND | 28 | A5M1 |
| 29 | A5P1 | 30 | GND |
| 31 | A6M1 | 32 | A6P1 |
| 33 | GND | 34 | A7M1 |
| 35 | A7P1 | 36 | GND |
| 37 | CLK2M1 | 38 | CLK2P1 |
| 39 | VDD33 for EDID Power | 40 | LCD_CLK (I2C CLK) |
| 41 | LCD_DATA (I2C DATA) | 42 | ENABLT1 (Enable BL) |
| 43 | BAK_ADJ | 44 | NC |
| 45 | NC | 46 | NC |
| 47 | NC | 48 | NC |
| 49 | NC | 50 | NC |