Target Interface; Jtag/Swd - Mipi-20 - IAR SYSTEMS I-jet User Manual

Target interface

This section contains descriptions of pinout, signals, and connectors.

JTAG/SWD - MIPI-20

I-jet comes with a 6-inch cable with 20-pin MIPI connectors on both ends for the
Cortex-M targets with 20-pin MIPI headers. Pin 7 on each end is keyed with a white
plug:
Figure 3: The MIPI-20 connector
These are the MIPI-20 pin definitions:
Pin Signal Type
1 VTref Input
2 SWDIO/TMS I/O, output JTAG mode set input of taget CPU. This pin should be
4 SWCLK/TCK Output
Table 1: MIPI-20 pin definitions
Description
The target reference voltage. Used by I-jet to check
whether the target has power, to create the logic-level
reference for the input comparators, and to control the
output logic levels to the target. It is normally fed from
Vdd of the target board.
pulled up on the target. Typically connected to TMS of
the target CPU.
JTAG clock signal to target CPU. It is recommended that
this pin is pulled to a defined state of the target board.
Typically connected to TCK of the target CPU.
Technical specifications
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