User manual

 One High Speed Adapter, for the DIN_USR connector. The High Speed Adapter is an
alternative to the 2×16 fly-wire assembly. It provides access for 24 twisted cables. The
adapter is not keyed, and both orientations can be used as the twisted wires are not color
coded. However, if the adapter is plugged in with the ground arrows pointing down, the
pins will be located as shown below:
 High Speed Logic Probes (datasheet). Each twisted cable has a GND (black) wire twisted
to a DIN_USR (colored) wire. The wire connects to the High Speed Adapter via a 2 pin
female header, and two 1 pin female connectors to the device under test. A 100Ω resistor
is embedded in the signal wire, on the end closest to the device under test. All GND wires
should be connected to Ground of the device under test.
https://reference.digilentinc.com/_media/reference/instrumentation/digital-discovery/250-
104_dp_2.54_3.pdf
9. Features and Performances
This chapter shows the features and performances as described in the Digital Discovery
Datasheet. Footnotes add detailed information and annotate the HW description in this Manual.
9.1. Logic Analyzer
 24 high-speed input channels (DIN0…23), accessible through one 2×16 connector, used
with the Logic Analyzer in Waveforms (560kΩ||10pF)
 16 digital I/Os (DIO24…39) arranged in two Pmod-style (2×6) connectors, used with the
Logic Analyzer in Waveforms
1)
 800MSps input sample rate when using maximum 8 inputs (and the High Speed
Adapter), 400 MSps with maximum 16 inputs (with the High Speed Adapter), 200MSps
and lower with maximum 32 inputs
2)
 User programmable input and output LVCMOS voltage levels from 1.2V to 3.3V
3)
(5V
compatible
4)
)
 100MHz signal input bandwidth
 2Gbit DDR3 acquisition buffer for Logic Analyzer
 Multiple trigger options including pin change, bus pattern, etc
5)
 Digital Bus Analyzers (SPI, I²C, UART, Parallel)