VIA Technologies 10GWG21Q00020 User Manual Download Page 25

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SOM-9X20 User Manual

Pin

Signal

Pin

Signal

79 GND

80 MIPI_DSI1_LANE1_P

81 HDMI_TX0_P

82 MIPI_DSI1_LANE1_M

83 HDMI_TX0_M

84 GND

85 GND

86 MIPI_DSI1_LANE2_P

87 HDMI_TX1_P

88 MIPI_DSI1_LANE2_M

89 HDMI_TX1_M

90 GND

91 GND

92 MIPI_DSI1_LANE3_P

93 HDMI_TX2_P

94 MIPI_DSI1_LANE3_M

95 HDMI_TX2_M

96 GND

97 GND

98 MIPI_CSI0_CLK_P

99 MIPI_CSI1_CLK_P

100 MIPI_CSI0_CLK_M

101 MIPI_CSI1_CLK_M

102 GND

103 GND

104 MIPI_CSI0_LANE0_P

105 MIPI_CSI1_LANE0_P

106 MIPI_CSI0_LANE0_M

107 MIPI_CSI1_LANE0_M

108 GND

109 GND

110 MIPI_CSI0_LANE1_P

111 MIPI_CSI1_LANE1_P

112 MIPI_CSI0_LANE1_M

113 MIPI_CSI1_LANE1_M

114 GND

115 GND

116 MIPI_CSI0_LANE2_P

117 MIPI_CSI1_LANE2_P

118 MIPI_CSI0_LANE2_M

119 MIPI_CSI1_LANE2_M

120 GND

121 GND

122 MIPI_CSI0_LANE3_P

123 MIPI_CSI1_LANE3_P

124 MIPI_CSI0_LANE3_M

125 MIPI_CSI1_LANE3_M

KEY

133 GPIO_17

134 GPIO_13

135 GPIO_18

136 GPIO_14

137 GPIO_19

138 GND

139 GPIO_20

140 GPIO_16

141 GND

142 GPIO_15

143 GPIO_58

144 GND

145 GPIO_59

146 MIPI_CSI2_CLK_P

147 GPIO_60

148 MIPI_CSI2_CLK_M

149 GPIO_30

150 GND

151 GPIO_29

152 MIPI_CSI2_LANE0_P

153 GPIO_114

154 MIPI_CSI2_LANE0_M

155 GPIO_115

156 GND

157 GPIO_116

158 MIPI_CSI2_LANE1_P

159 GND

160 MIPI_CSI2_LANE1_M

161 PCIE2_CLK_P

162 GND

163 PCIE2_CLK_M

164 MIPI_CSI2_LANE2_P

165 GND

166 MIPI_CSI2_LANE2_M

Summary of Contents for 10GWG21Q00020

Page 1: ...USER MANUAL SOM 9X20 Ultra compact solution for graphics intensive edge computing applications 1 05 05102018 175700 ...

Page 2: ...uch change VIA Technologies Inc reserves the right the make changes to the products described in this manual at any time without prior notice Regulatory Compliance FCC A Radio Frequency Interference Statement This equipment has been tested and found to comply with the limits for a class A digital device pursuant to part 15 of the FCC rules These limits are designed to provide reasonable protection...

Page 3: ...wer cord where people will step on it Always unplug the power cord before inserting any add on card or module If any of the following situations arise get the equipment checked by authorized service personnel The power cord or plug is damaged Liquid has entered into the equipment The equipment has been exposed to moisture The equipment is faulty or you cannot get it work according to User s Manual...

Page 4: ...ter board 1 x 13MP CMOS camera module 1 x FPC cable for CSI connector Ordering Information Part Number Description 10GWG21Q00020 SOM module with Qualcomm Snapdragon 820E quad core SoC 64GB eMMC UFS 4GB POP LPDDR4 RAM HDMI 2 DSI 3 CSI USB 3 0 USB 2 0 UART GPIO SDIO Wi Fi Bluetooth 4 1 GPS GNSS 2 PCIe 2 0 1 Lane 10GWH00000020 SOMDB2 carrier board STK VT6093 00A1 SOM 9X20 module SOMDB2 carrier board ...

Page 5: ... 10 A 2 SOMDB2 Layout Diagram 11 A 3 SOMDB2 Onboard I O 12 A 3 1 USB 2 0 Port 12 A 3 2 JTAG Connector 12 A 3 3 RTC Battery Connector 13 A 3 4 Micro SD Card Slot 13 A 3 5 Volume Button 14 A 3 6 USB 2 0 OTG Switch 14 A 3 7 MiniPCIe Slot 15 A 3 8 MXM 3 0 Slot 16 A 3 9 MIPI CSI Connector 21 A 3 10 MIPI DSI LCD Connector 22 A 3 11 P Cap Touch Connector 23 A 3 12 Front Panel Connector 23 A 3 13 COM Conn...

Page 6: ...m 13 Figure 17 Micro SD card slot diagram 13 Figure 18 Volume button diagram 14 Figure 19 USB 2 0 OTG switch diagram 14 Figure 20 MiniPCIe slot diagram 15 Figure 21 MXM 3 0 slot diagram 16 Figure 22 MIPI CSI connector diagram 21 Figure 23 MIPI DSI LCD panel connector diagram 22 Figure 24 P Cap touch connector diagram 23 Figure 25 Front panel connector diagram 23 Figure 26 COM connector diagram 24 ...

Page 7: ...uts 24 Table 12 I2 C connector for light proximity sensor pinouts 25 Table 13 I2 C connector for NFC module pinouts 25 Table 14 Mic in connector pinouts 26 Table 15 2W Speaker connectors pinouts 26 Table 16 Audio module connector pinouts B2B_1 27 Table 17 Audio module connector pinouts B2B_2 27 Table 18 Boot switch settings 28 Table 19 HDMI port pinouts 29 Table 20 USB 3 0 pinouts 29 Table 21 Micr...

Page 8: ...ooth through an integrated combo LGA module featuring three antenna connectors The VIA SOM 9X20 module features 64GB eMMC UFS Flash memory and 4GB LPDDR4 SDRAM onboard and offers rich I O and display expansion options through its MXM 3 0 314 pin slot including USB 3 0 USB 2 0 HDMI 2 0 SDIO PCIe MIPI CSI MIPI DSI and multi function pins for UART I2 C SPI and GPIO The VIA SOM 9X20 features a complet...

Page 9: ...t Next Supports H 264 VP8 HEVC 8 10 bit VP9 video decoding up to 4K 60fps 1080p 240fps 8 x 1080p 30fps Trusted Platform Module TPM1 2 ST33TPM12I2C Wireless Connectivity NFA324A 12H32 QCA6174A 1 Wi Fi 802 11 a b g n ac BT 4 1 combo LGA module with two antenna connectors Qualcomm WGR7640 GPS GNSS RF receiver with antenna connector Audio Qualcomm WCD 9335 Audio Codec Note The SOMDB2 carrier board com...

Page 10: ...midity non condensing Form Factor 82mm x 45mm 3 23 x 1 77 Compliance RoHS Notes 1 The operating temperature will be supported with the proper thermal solution which should ensure the Ts Surface Temperature on the center of the metal shielding that covers the processor is not over 80 C 2 Please note that the lifespan of the onboard eMMC UFS memory chip may vary depending on the amount of access Mor...

Page 11: ... top side Figure 2 Layout diagram of the SOM 9X20 module bottom side Wi Fi BT 4 1 module GPS GNSS receiver Snapdragon 820E quad core SoC Golden finger GPS micro miniature RF antenna connector Wi Fi BT micro miniature RF antenna connector Wi Fi micro miniature RF antenna connector UFS eMMC ...

Page 12: ...r Manual 5 1 4 Product Dimensions Figure 3 Dimensions of the SOM 9X20 module Figure 4 Dimensions of the SOMDB2 carrier board with SOM 9X20 module installed 82mm 75mm 45mm 3 5mm 3 5mm O 3mm BR2032 86mm 170mm O 3 5mm ...

Page 13: ...ze RF receptacle connector which is to be used in conjunction with the M 2 boards modules In addition the RF receptacle on the module can support either 0 81mm or 1 13mm diameter cable but it is recommended to use 1 13mm diameter cable for lower loss and 1 2mm max mated height for low profile design An example of a plug connector is the IPEX 20611 001R 2 2 GPS Micro Miniature RF Antenna Connector ...

Page 14: ...tch on the SOM 9X20 module with the counterpart on the MXM 3 0 slot on the SOMDB2 carrier board then insert the module at a 30 angle Figure 7 Installing the SOM 9X20 module Step 2 Once the SOM 9X20 module has been fully inserted push down the module until the standoff holes align with the screw holes and then secure the module with the provided two screws Figure 8 Securing the SOM 9X20 module 30 V...

Page 15: ...board Wi Fi Bluetooth module Figure 9 Recommended mating unmating jig Step 2 Using the jig align the plug connector onto the micro miniature RF antenna connector Then push down gently until the plug connector is fully connected The recommended force must be 30N maximum Figure 10 Mating method of plug connector MHF4L 90609 0001 O 3 00mm Top view 1 90mm 3 60mm 40 00mm Side view 0 40mm 2 00mm 2 65mm ...

Page 16: ...st documentation and new information about the SOM 9X20 please visit our website at https www viatech com en boards modules som 9x20 For technical support and additional assistance always contact your local sales representative or board distributor or go to https www viatech com en support driver support fag technical support for technical support For OEM clients and system integrators developing ...

Page 17: ...O 2 x I2 C connectors for light proximity sensor and NFC module 1 x Front panel connector 1 x JTAG connector 1 x Mic in connector 2 x 2W speaker connectors 2 x Audio module connectors for VT6093 audio module 2 x Volume buttons 1 x Boot switch 1 x RTC battery connector 1 x Micro SD card slot 1 x miniPCIe slot 1 x MXM 3 0 slot Back Panel I O 1 x HDMI 2 0 port 2 x USB 3 0 ports 1 x Micro USB 2 0 OTG ...

Page 18: ...I Micro USB 2 0 OTG Power bu on Gigabit Ethernet BR2032 RTC ba ery connector miniPCIe MXM 3 0 Micro SD card slot USB 2 0 JTAG USB 2 0 OTG switch Volume Up bu on Volume Up bu on Volume Down bu on USB 2 0 1 2 3 4 ON DIP 2W Le speaker Front panel COM TX RX only 2W Right speaker GPIO P Cap Touch Mic in MIPI CSI Audio module connectors for VT6093 audio module I C for light proximity sensor 2 I C for NF...

Page 19: ...hat allow JTAG debugging equipment to be used The connector is labeled as J2 The pinouts of the JTAG connector are shown below Table 2 JTAG connector pinouts USB2_R Pin Signal 1 USB2_R 2 HUB_USBDN_DM4_C 3 HUB_USBDN_DP4_C 4 GND Figure 14 USB 2 0 ports diagram BR2032 USB2_R 1 1 1 USB2_L 1 Pin Signal 1 VREG_S4A_1P8 2 N A 3 JTAG_TRST_N 4 GND 5 JTAG_TDI 6 GND 7 JTAG_TMS 8 JTAG_TCK 9 JTAG_TDO 10 JTAG_SR...

Page 20: ...tor is labeled as RTC1 Figure 16 RTC battery connector diagram A 3 4 Micro SD Card Slot The SOMDB2 carrier board comes with a Micro SD card slot located on the front panel with support for a maximum storage capacity of 64GB The pinouts of the Micro SD card slot are show below Table 3 Micro SD card slot pinouts Pin Signal 1 SD_DAT2 2 SD_DAT3 3 SD_CMD 4 SD_VDD 5 SD_CLK 6 GND 7 SD_DAT0 8 SD_DAT1 9 SD...

Page 21: ...on diagram A 3 6 USB 2 0 OTG Switch The SOMDB2 carrier board comes with a USB 2 0 OTG switch labeled as USB_ID_SET which enables and disables the OTG function on the Micro USB 2 0 OTG port for Host mode Device mode The diagram of the USB 2 0 OTG switch is shown below Figure 19 USB 2 0 OTG switch diagram Note Once the OTG function is enabled the USB 3 0 ports will be disabled BR2032 VOL_UP VOL_DOWN...

Page 22: ...E_N3V3_C 2 VDD33_MPCIE 3 N A 4 GND 5 NA 6 VDD1V5 7 PCIE1_CLKREQ_N_3V3_C 8 N A 9 GND 10 N A 11 PCIE1_CLK_M 12 N A 13 PCIE1_CLK_P 14 N A 15 GND 16 N A 17 N A 18 GND 19 N A 20 PCIE1_W_DISABLE_3V3 21 GND 22 PCIE1_RST_N_3V3_C 23 PCIE1_RX_M 24 VDD3V3_MPCIE 25 PCIE1_RX_P 26 GND 27 GND 28 VDD1V5 29 GND 30 BLSP6_I2C_SCL_3V3_C 31 PCIE1_TX_M 32 BLSP6_I2C_SDA_3V3_C 33 PCIE1_TX_P 34 GND 35 GND 36 HUB_USBDN_DM1...

Page 23: ...al E10 USB3_VBUS E30 VREG_L21A_2P95 E11 USB3_VBUS E31 VREG_L21A_2P95 E12 USB3_VBUS E32 VREG_L13A_2P95 E13 USB3_VBUS E33 VREG_L13A_2P95 E14 VREG_SMARTBOOST_5V E34 VPH_PWR E15 VREG_SMARTBOOST_5V E35 VPH_PWR E16 VREG_S4A_1P8 E36 VPH_PWR E17 VREG_S4A_1P8 E37 VPH_PWR E18 VREG_S4A_1P8 E38 PM_VCOIN E19 VREG_S4A_1P8 E39 VOL_DOWN_N E20 VBATT E40 VBATT E21 VBATT E41 VBATT E22 VBATT E42 VREG_WLED E23 VBATT E...

Page 24: ...128 34 SSC_5 35 PM_GPIO_04 36 SSC_4 37 GPIO_84 38 SSC_6 39 BATT_THERM 40 SSC_7 41 BATT_ID 42 SSC_14 43 GND 44 SSC_15 45 MIPI_DSI0_CLK_P 46 GPIO_28 47 MIPI_DSI0_CLK_M 48 GPIO_27 49 GND 50 GPIO_49 51 MIPI_DSI0_LANE0_P 52 GPIO_50 53 MIPI_DSI0_LANE0_M 54 GPIO_52 55 GND 56 GPIO_51 57 MIPI_DSI0_LANE1_P 58 HDMI_CEC 59 MIPI_DSI0_LANE1_M 60 HDMI_DDC_CLK 61 GND 62 HDMI_DDC_DATA 63 MIPI_DSI0_LANE2_P 64 HDMI_...

Page 25: ...I_CSI1_LANE1_P 112 MIPI_CSI0_LANE1_M 113 MIPI_CSI1_LANE1_M 114 GND 115 GND 116 MIPI_CSI0_LANE2_P 117 MIPI_CSI1_LANE2_P 118 MIPI_CSI0_LANE2_M 119 MIPI_CSI1_LANE2_M 120 GND 121 GND 122 MIPI_CSI0_LANE3_P 123 MIPI_CSI1_LANE3_P 124 MIPI_CSI0_LANE3_M 125 MIPI_CSI1_LANE3_M KEY 133 GPIO_17 134 GPIO_13 135 GPIO_18 136 GPIO_14 137 GPIO_19 138 GND 139 GPIO_20 140 GPIO_16 141 GND 142 GPIO_15 143 GPIO_58 144 G...

Page 26: ...2_HS_D_P 200 GPIO_61 201 GND 202 GPIO_77 203 GPIO_26 204 GPIO_79 205 USB3OTG_VBUS_EN 206 GND 207 USB3_HS_ID 208 SDC2_CLK 209 PMI_GPIO_6 210 SDC2_CMD 211 GPIO_86 212 SDC2_DATA_0 213 GPIO_25 214 SDC2_DATA_1 215 GPIO_56 216 SDC2_DATA_2 217 GPIO_55 218 SDC2_DATA_3 219 GND 220 SD_CARD_DET_N 221 GPIO_80 222 JTAG_SRST_N 223 GPIO_81 224 JTAG_TCK 225 GPIO_82 226 JTAG_TDI 227 GPIO_83 228 JTAG_TDO 229 GND 23...

Page 27: ... 258 DIVCLK2_CDC 259 GPIO_40 260 GND 261 GPIO_63 262 SLIMBUS_CLK 263 GPIO_78 264 SLIMBUS_DATA0 265 GPIO_117 266 SLIMBUS_DATA1 267 GPIO_118 268 CODEC_RST_N 269 GPIO_119 270 SPKR_AMP_EN1 271 GPIO_120 272 SPKR_AMP_EN2 273 GPIO_121 274 PMI_HAP_PWM_IN 275 GPIO_122 276 GND 277 GPIO_123 278 PMI_HAP_OUT_P 279 GPIO_124 280 PMI_HAP_OUT_M 281 GPIO_129 ...

Page 28: ...or pinouts 1 2 3 4 ON DIP 1 CSI 1 Pin Signal 1 GND 2 MIPI_CSI0_CLK_P 3 MIPI_CSI0_CLK_M 4 GND 5 MIPI_CSI0_LANE2_M 6 MIPI_DSI0_LANE2_P 7 GND 8 MIPI_CSI0_LANE1_P 9 MIPI_CSI0_LANE1_M 10 GND 11 MIPI_CSI0_LANE0_P 12 MIPI_CSI0_LANE0_M 13 GND 14 MIPI_CSI0_LANE3_M 15 MIPI_CSI0_LANE3_P 16 GND 17 CSI_VDD3 5V 18 CSI_VDD2 5V 19 CSI_VDD1 5V 20 CAM1_PWDN_CONN 21 CAM_MCLK0_CONN 22 N A 23 GND 24 CCI_I2C_SDA0_CONN ...

Page 29: ... DIP DSI 1 1 Pin Signal 1 PANEL_VDD 2 PANEL_VDD 3 NC 4 PANEL_LED_EN 5 LED_PWM 6 PANEL_EDID_SDA 7 PANEL_EDID_SCL 8 PANEL_NC1 9 GND 10 MIPI_DSI0_LANE2_P 11 MIPI_DSI0_LANE2_M 12 GND 13 MIPI_DSI0_LANE1_P 14 MIPI_DSI0_LANE1_M 15 GND 16 MIPI_DSI0_CLK_P 17 MIPI_DSI0_CLK_M 18 GND 19 MIPI_DSI0_LANE0_P 20 MIPI_DSI0_LANE0_M 21 GND 22 MIPI_DSI0_LANE3_P 23 MIPI_DSI0_LANE3_M 24 GND 25 GND 26 GND 27 GND 28 PANEL...

Page 30: ...oard has a front panel connector that consists of 10 pins and is labeled as F_PANEL1 The pinouts of the front panel connector are shown below Table 9 Front panel connector pinouts Pin Signal 1 GND 2 HUB_USBDN_DM2_TOUCH 3 HUB_USBDN_DP2_TOUCH 4 N A 5 N A 6 N A 7 VDD3V3_SUS 8 N A 1 2 3 4 ON DIP 1 TS 1 Figure 24 P Cap touch connector diagram Figure 25 Front panel connector diagram Pin Signal 1 VDD5V0 ...

Page 31: ... to read or control devices with input or output defined The GPIO pin header supports up to 8 GPI and 8 GPO signals The pinouts of the GPIO connector are shown below Table 11 GPIO connector pinouts Pin Signal 1 RS232_TXD 2 RS232_RXD 3 GND 4 N A 5 N A Pin Signal 1 VREG_S4A_1P8 2 PM8996_GPI06 3 N A 4 N A 5 N A 6 HRM_INT 7 CAP_INT_N 8 HALL_INT_N 9 SSC_IRQ_5_INT 10 SSC_IRO_6_INT 11 ACCEL_INT 12 GYRO_I...

Page 32: ...nector for light proximity sensor pinouts Table 13 I2 C connector for NFC module pinouts Pin Signal 1 GND 2 NFC_VDD_IO 3 VDD3V3 4 N A 5 NFC_DWL_REQ_3V3 6 NFC_VEN_3V3 7 GND 8 NFC_12C_SCL_3V3 9 NFC_12C_SDA_3V3 10 GND 11 NFC_IRO_3V3 12 N A 13 N A 14 GND 15 VDD3V3 1 2 3 4 ON DIP 1 NFC 1 Pin Signal 1 GND 2 PS_I2C_SCL_1V8 3 PS_I2C_SDA_1V8 4 INT_PS_1V8 5 VDD3V3 6 VDD3V3 1 2 3 4 ON DIP 1 PS1 1 Figure 28 I...

Page 33: ...ector pinouts A 3 17 2W Speaker Connector The SOMDB2 carrier board is equipped with two 2W speaker connectors for the right and left speakers respectively The speaker connectors are labeled as SPK_L and SPK_R The pinouts of the speaker connectors are shown below Table 15 2W Speaker connectors pinouts Pin Signal 1 MIC IN 2 GND Pin Signal 1 SPKR_OUT_P 2 SPKR_OUT_M 1 2 3 4 ON DIP 1 1 SPK_R 1 SPK_L 1 ...

Page 34: ...18 GND 19 MIC_BIAS4 20 CDC_DMIC_CLK2 21 CDC_IN4_P 22 CDC_DMIC_DATA2 23 CDC_IN4_M 24 CODEC_INT1_N 25 GND 26 DODEC_INT2_N 27 CDC_IN5_P 28 CDC_IN6_P 29 CDC_IN5_M 30 CDC_IN6_M 1 2 3 4 ON DIP 1 1 B2B_2 1 B2B_1 1 Pin Signal Pin Signal 1 CDC_LINE_OUT1_P 2 DIVCLK1_CDC 3 CDC_LINE_OUT1_M 4 DIVCLK2_CDC 5 GND 6 GND 7 CDC_LINE_OUT2_P 8 SLIMBUS_CLK 9 CDC_LINE_OUT2_M 10 SLIMBUS_DATA0 11 GND 12 SLIMBUS_DATA1 13 C...

Page 35: ...ed to select where the system will be booted from The switch is labeled as BOOT 1 The settings of the boot switch are shown below Table 18 Boot switch settings 1 2 3 4 ON DIP ON DIP 1 2 3 4 BOOT 1 Setting 1 2 3 4 eMMC Off Off Off Off UFS Off Off On Off Micro SD On Off On Off Figure 33 Boot switch diagram ...

Page 36: ...rts on the back panel which have a maximum data transfer rate of up to 5Gbps and are compatible with USB 2 0 specifications This USB port gives complete Plug and Play and hot swap capability for external devices The pinouts of the USB 3 0 port are shown below Table 20 USB 3 0 pinouts Pin Signal Pin Signal 1 TX2 11 GND 2 GND 12 CLK 3 TX2 13 CEC 4 TX1 14 NA 5 GND 15 SCL 6 TX1 16 SDA 7 TX0 17 GND 8 G...

Page 37: ...rnet Port The SOMDB2 carrier board comes with two Gigabit Ethernet ports on the back panel which has an 8 position and 8 contact 8P8C receptacle connector commonly known as RJ 45 It is fully compliant with IEEE 802 3 10BASE T 802 3u 100BASE TX and 802 3ab 1000BASE T standards The pinouts of the Gigabit Ethernet port are shown below Table 22 Gigabit Ethernet port pinouts Pin Signal 1 GND 2 MX0 3 MX...

Page 38: ...e 25 DC in jack specification Pin Signal 1 VDD120_IN 2 GND 3 GND Physical Specification Outer Diameter 6 0mm Inner Diameter 2 0mm Barrel Depth 8 2mm Electrical Specification Input Voltage 12V Figure 38 Power button diagram 1 2 Figure 39 DC in jack diagram 2 0mm 6 0mm Figure 40 DC in jack specification diagram Power Button behavior Suspend Resume System Quickly press the power button once to suspen...

Page 39: ...32 A 5 SOMDB2 Dimensions BR2032 86mm 170mm O 3 5mm Figure 41 Dimensions of the SOMDB2 carrier board Figure 42 Dimensions of the SOMDB2 back panel I O 33mm 19mm 49 88mm 71mm 91mm 110 16mm 127mm 147mm MAX 8 84mm MAX 6mm 1 6mm ...

Page 40: ...ES 85204 0800L USB2_L USB2_R 99G30 060962 CHUNFENG C023620 01 DSI 99G30 03304A1 PINREX 979 43 93480A CSI 99G30 03305A1 PINREX 979 43 93080A NFC 99G30 03306A1 PINREX 979 43 91580A PS1 99G30 170252 ACES 50271 0060N 001 TS 99G30 03307A1 PINREX 979 43 90880A F_PANEL1 99H30 171682 ACES 5027 0100N 001 COM 99G30 170572 ACES 85204 0500L SPK_L SPK_R 99G30 170512 ACES 85204 0200L MIC 99G30 170512 ACES 85204...

Page 41: ...10 687 4654 Email embedded viatech com Email embedded via tech eu Taiwan Headquarters USA Europe Tsinghua Science Park Bldg 7 No 1 Zongguancun East Road Haidian Dist Beijing 100084 China Tel 86 10 59852288 Fax 86 10 59852299 Email embedded viatech com cn 3 15 7 Ebisu MT Bldg 6F Higashi Shibuya ku Tokyo 150 0011 Japan Tel 81 3 5466 1637 Fax 81 3 5466 1638 Email embedded viatech co jp China Japan ...

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