DATA ACQUISITION
19
Decoding the Data
There are multiple versions of DPA-400. All versions share the same test equipment hardware,
but more recent versions of the DPA-400 GUI support later versions of DisplayPort DPCD
register structure and other more advanced features. Please see the table below.
Version
Added features
DPA-400
DPCD 1.X, HDCP 1.X decoding
DPA-400 1.2
DPCD 1.2 decoding, Sideband CH messages
DPA-400 1.4
DPCD 1.4, HDCP 2.2 decoding
DPA-400 2.0
DP 2.0 support for DPCD 1.4 decoding, including DSC, FEC and
LTTPR specific DPCD registers
From the pull-down menu select
Decoding
and select the version.
You can select
•
DPCD 1.1 Decoder
•
DPCD 1.2 Decoder
•
DPCD 1.3 Decoder
•
DPCD 1.4 Decoder for DP 1.4a
•
DPCD 1.4 Decoder for DP 2.0
•
Define if DETAILED_CAP_INFO_AVAILBLE bit (DPCD 0x00005) is set to indicate that
DFP capability field is 4 bytes/port for the detailed capability description
•
Define if MAIN_LINK_CHANNEL_CODING_SET (DPCD 0x00108) is set to 2 to indicate
128b/132b Link Layer
Note
Please note that various features of DPA-400 are enabled with license keys. For upgrading
your DPA-400, please contact Unigraf.
