Serial wire JTAG debug port (SWJ-DP)

The ARM SWJ-DP Interface is embedded. and is a combined JTAG and serial wire debug port that enables either a serial wire debug or a JTAG probe to be connected to the target. The JTAG TMS and TCK pins are shared respectively with SWDIO and SWCLK and a specific sequence on the TMS pin is used to switch between JTAG-DP and SW-DP.

Figure 1. STM32F101xx access line block diagram

1. AF = alternate function on I/O port pin.
2. TA = –40 °C to +85 °C (junction temperature up to 125 °C).

Figure 2. STM32F101xx access line LQFP100 pinout

Figure 3. STM32F101xx access line LQFP64 pinout

Figure 4. STM32F101xx access line LQFP48 pinout