Infineon SAK-TC375TP-96F300W AA - Infineon DAP Debug Connector (10-pin)

AURIX™ lite Kit V2
Hardware Description
Board Users Manual 19 Revision October, 2020
4.4 Infineon DAP Debug Connector (10-pin)
Infineon’s 10-pin Device Access Port Debug Connector (DAP) is a two-wire tool access port for microcontrollers
and similar devices. It allows robust high speed connections over a long cable for automotive applications. The
pin assignment of the DAP Debug Connector is shown in Table 9. The board comes with a DAP connector. You
can connect a DAP hardware here. If you use this connector make sure that the miniWiggler JDS is not activ
(LED5 is off). For more information, we refer you to the DAP Connector Manual.
Table 9 Pin Assignment of the DAP Debug Connector
Pin
Name
AURIX™ Pin
Direction
Description
1
VREF
VEXT
O
Supply voltage from the target system. The voltage has to be
strong enough to supply the target side of the level shifters within
the tool hardware up to about 20 MHz DAP operating frequency.
The required supply current is in the range of 5 mA, mainly
caused by signal switching. It can be reduced by lowering
frequency and capacitance. Beyond 20 MHz the tool hardware
has to supply the level shifter from another source and use this
pin just as a voltage reference
2
DAP1
TMS
IO
DAP: Data pin.
SPD
IO
SPD: Data pin.
UART
IO
Single-wire UART. Serial communication interface (e.g. used for
Bootstrap Loader BSL).
3
GND
GND
Recommended pin for signal return of DAP1 for high frequency
impedance matching.
4
DAP0
TCK
I
DAP: Clock.
SUP
I
SPD: Optional user pin value for feedback into the target system.
Otherwise reserved
5
GND
GND
Recommended pin for signal return of DAP0 for high frequency
impedance matching.
6
DAP2
P21.7
IO
DAP: Optional second data pin.
USER0
IO/O
Generic signal that can be used for non specified functions.
7
KEY (GND
in cable)
GND
-
If the recommended connector with keying shroud is not used,
this pin provides another option to enforce polarization. In that
instance this pin is removed from the target connector and the
associated jack in the cable connector closed with a plastic pin for
example.
8
DAP3
/TRST
IO
DAP: Optional third data pin.
USER1
IO/I
Generic signal that can be used for non-specified functions.
(DAPEN)
I
Optional indicator that the tool is connected. This can be used to
enable the DAP interface of the device
9
GND
GND
Supply ground.
10
RESET
/PORST
IO
Target reset signal. Open drain active low signal. May be used bi-
directionally to drive or sense the target reset signal. Usually
driven by the tool to reset the target system. The target system is
responsible for providing a pull-up to VREF on this signal to
establish a logic one. The resistor shall not have a value less than
1 kOhms.