User Guide

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7.1.1 MIPI DSI 0
The 96Boards specification calls for a MIPI-DSI to be present on the High Speed Expansion Connector. A minimum of one
lane is required and up to four lanes can be accommodated on the connector.
The DB8 implementation supports a full four lane MIPI-DSI interface that is routed to the Primary High Speed
Expansion Connector.
7.1.2 MIPI CSI {0/1}
The 96Boards specification calls for two MIPI-CSI interfaces to be present on the High Speed Expansion Connector. Both
interfaces are optional. CSI0 interface can be up to four lanes while CSI1 is up to two lanes.
The current DB8 implementation supports a full four lane MIPI-CSI interface on CSI0 and two lanes of MIPI-CSI on
CSI2. All MIPI-CSI signals are routed directly to/from the APQ8096.
7.1.3 I2C {2/3}
The 96Boards specification calls for two I2C interfaces to be present on the High Speed Expansion Connector. Both interfaces
are optional unless a MIPI-CSI interface has been implemented. Then an I2C interface shall be implemented.
The current DB8 implementation supports two MIPI-CSI interfaces and therefore must support two I2C interfaces.
For MIPI-CSI0 the companion I2C2 is routed directly from the APQ8096. For MIPI-CSI2, the companion I2C is I2C3.
7.1.4 HSIC
The 96Boards specification calls for an optional MIPI-HSIC interface to be present on the High Speed Expansion Connector.
The DB8 implementation doesn’t support this optional requirement.
7.1.5 Reserved
The 96Boards specification calls for a 100K pull-up to 1.8V to be connected to pin 60 of the High Speed Expansion
Connector.
The DB8 utilizes a 100K pull-up (R147) on pin 60.
7.1.6 SD/SPI
The 96Boards specification calls for an SD interface or a SPI port to be part of the High Speed Expansion Connector.
The DB8 implements a full SPI master with 4 wires (96Boards SPI Configuration), CLK, CS, MOSI and MISO all connect
directly to the APQ8096 SoC. These signals are driven at 1.8V.
7.1.7 Clocks
The 96Boards specification calls for one or two programmable clock interfaces to be provided on the High Speed
Expansion Connector. These clocks may have a secondary function of being CSI0_MCLK and CSI1_MCLK. If these clocks