Data Sheet

1 5
J3 was added for practical reasons. The 2.54 mm step connectors are cheaper and more
robust and can connect to a wide range of other connectors. It is easier to use this connector to
connect to the 20-point ARM 2.54mm-step standard.
J3 does not correspond to a standard. It contains the main signals necessary for the S3P and
SWD protocols:
Vcc 1
Gnd 2
S3PIO/SWDIO 3
S3PCK/SWDCK 4
nRST 5
1 /6
P1 extension connector is composed of two mechanically independent parts:
· PA1 has 12 points
· PA2 has 12 points. The two additional points are used exclusively for initial programming.
Most of the signals on the expansion connector are reserved for extensions proposed by IoTize,
so this connector will only be used in exceptional situations, for example, if it is necessary to
control the reset of the TAP.
The figure below shows the position of the TapNLink’s power, reset and wakeup points.
GND/PA1.12
PA2.12 /VCC
PA1.11
PA2.11
PA1.10
PA2.10
PA1.9
PA2.9
PA1.8
PA2.8
PA1.7
PA2.7
PA1.6
PA2.6
Tap_nRST / PA1.5
PA2.5
PA1.4
PA2.4
PA1.3
PA2.3 / Tap_Wakeup
PA1.2
PA2.2
Vcc / PA1.1
PA2.1 / GND
TnL-FIW103 Datasheet 12