6: Display Card
Snapdragon 845 HDK Hardware Development Kit User Guide
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The HDK845 development platform can support the following display combinations:
6.2
Display Card Connector J0501
The 100-pin display card connector provides the following features/ pin-outs that enables the development kit to
connect to a MIPI DSI panel/ device:
NOTE
:
Refer to the carrier schematic and display card tech notes when designing a custom display card.
DSI
2 x 4 lane DSI
Backlight
Dual synchronous SMPS topology: boost (LAB module) and inverting buckboost (IBB
module) and gamma bias (OLEDB) module
–
Input voltage range: 2.5 V to 4.6 V
–
Programmable output voltage:
•
LCD display: +5 V to +6.1 V and -1.4 V to -6.0 V
•
AMOLED display: +4.6 V to +5 V and -1.4 V to -5.4 V
Display connector
TFT with integrated backlight
TFT with external backlight
Additional GPIOs for general purposes available
Touch Panel
Supports up to two touch screen controllers
Supports I2C or SPI via QUP and SSC_SPI_2
Can chose between I2C or SPI signals via MUX
The display card connector supports the following power domains:
MIPI DSI
1 x 4-lane DSI0 + 1 x 4-lane
DSI1 2 x 4-lane DSI DPHY 1.2
