REF: BBONEBLK_SRM
BeagleBone Black System
Reference Manual
Rev A5.2
Page 34 of 108
header is not supplied standard on the board. To use this, a connector will need to be
soldered onto the board.
5.13
HDMI Interface
A single HDMI interface is connected to the 16 bit LCD interface on the processor. The
16b interface was used to preserve as many expansion pins as possible to allow for use by
the user. The NXP TDA19988BHN is used to convert the LCD interface to HDMI and
convert the audio as well. The signals are still connected to the expansion headers to
enable the use of LCD expansion boards or access to other functions on the board as
needed.
The HDMI device does not support HDCP copy protection. Support is provided via
EDID to allow the SW to identify the compatible resolutions. Currently the following
resolutions are supported via the software:
1280 x 1024
1440 x 900
1024 x 768
1280 x 720
5.14
Cape Board Support
The BeagleBone Black has the ability to accept up to four expansion boards or capes that
can be stacked onto the expansion headers. The word cape comes from the shape of the
board as it is fitted around the Ethernet connector on the main board. This notch acts as a
key to insure proper orientation of the cape.
The majority of capes designed for the original BeagleBone will work on the BeagleBone
Black. The two main expansion headers will be populated on the board. There are a few
exceptions where certain capabilities may not be present or are limited to the BeagleBone
Black. These include:
GPMC bus may NOT be available due to the use of those signals by the eMMC.
If the eMMC is used for booting only and the file system is on the SD card, then
these signals could be used.
Another option is to use the SD or serial boot modes and not use the eMMC.
The power expansion header is not on the BeagleBone Black so those functions
are not supported.
For more information on cape support refer to
