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SoC
Mux
M
B1
B2
PWR
MEASURE
HDMI
A1
Copyright © 2017, Texas Instruments Incorporated
I2C2
I2C2_SCL,_SDA
DDC
HDMI_DDC_SDA, _SCL
SN74CBTLV3257
1A=1B1 or 1A=1B2
I2C2_SCL, _SDA
Signal Multiplex Logic
33
SPRUII5A – December 2017 – Revised November 2018
Copyright © 2017–2018, Texas Instruments Incorporated
DRA77xP/DRA76xP-ACD CPU EVM Board
4.10 I2C/DDC Selection (Mux M)
is part of the SoC pinmux table for I2C2. The SoC device supports additional functions not
shown in the table. The functions shown are intended to reflect those supported on the EVM. These
include:
•
I2C Serial Bus (I2C2): I2C2_SCL, I2C2_SDA
•
Display Data Channel(DDC): HDMI_DDC_SDA, HDMI_DDC_SCL
Table 25. SoC Pinmux for I2C/HDMI
Pad Name
Function 1
Function 2
i2c2_scl
I2C2
i2c2_scl
HDMI
hdmi1_ddc_sda
i2c2_sda
I2C2
i2c2_sda
HDMI
hdmi1_ddc_scl
Figure 16. Mux Diagram for I2C/DDC
5
Application Boards
The CPU EVM supports several different interfaces for connecting additional boards/EVMs to enhance the
feature set of base EVM. The ability to add either existing applications boards to the systems is provided,
or you can design your own. The EVM interfaces that are design for expansion/application boards include:
•
Application board expansion – Intended to support a wide range of peripherals/functions. Supports a
wide variety of LVCMOS interfaces, including parallel video in/out ports, multi-channel serial ports,
I2Cs, UARTs, and GPIO. For a complete list of available IO functions, see the
DRA75xP, DRA74xP
Infotainment Applications Processor Silicon Revision 1.0 Data Manual
(SPRS989).
•
LCD expansion – Intended to support a display panel with touch. Supports parallel video
outputTDA2Px ADAS Applications Processor 23mm Package (ACD Package) Silicon Revision 1.0
Data Manual (, USB2.0, I2C, and GPIO
•
Camera expansion – Intended to support video input streams, such as camera sensors. Supports dual
MIPI video input channels, I2C, and GPIO