Microsd; Wifi/Bt/Rf; Display Interface; Hdmi - Geniatech DB8 Manual

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5.4 MicroSD

The 96Boards specification calls for a microSD socket to be present on the board.

The DB8 µSD slot (J24) signals are routed directly to the APQ8096 SDC2 interface. The slot is a push-push type with a

dedicated support for card detect signal (many µSD slots do not have a dedicated CD pins, they use DATA3 state as the card

detected signal). The DB8 uses APQ GPIO_38 as the SD_CARD_DET_N.

The 96Boards specifications calls for a WiFi (minimally 802.11g/n) and Bluetooth 4.1

The DB8 uses Qualcomm QCA6174A module solution that integrates two wireless connectivity technologies into a single

device, the interfaces are:

●

WLAN compliant with IEEE 802.11 b/g/n/ac specifications, exceeding 96Boards minimal requirements for WiFi.

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Bluetooth compliant with the BT specifications version 4.1 (BR/EDR), meeting the 96Boards requirements for

BT.

The 96Boards specification calls for an HDMI port to be on the board. The DB8 provides native support for an HDMI

interface. It supports a resolution up to 4K Ultra HD resolution at 60Hz.

The 96Boards specification calls for a MIPI-DSI implementation via the High Speed Expansion Connector.

The DB8 implements a four-lane MIPI_DSI on the primary high speed connector interface which meets the 96boards MIPI-DSI high

speed connector requirement. An additional four-lane MIPI_DSI bus is implemented on the secondary high speed connector. More

information about this implementation can be found in chapter7 High speed expansion connector.

The 96Boards specification calls for two camera interfaces.

The DB8 implements three camera interfaces.

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4 lane CSI camera on camera connector J20

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4 lane CSI camera on primary high speed connector J9

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2 lane CSI camera on primary high speed connector J9

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