Tool's documentation before you put devices into chain. Generally, JTAG supports many devices in single JTAG chain, but many tools are not compatible with this feature. Simple to install and use due to the USB plug-and-play ability. If your design uses multiple devices with JTAG TAP, you must either use separate connector for each device or chain devices. In other cases we recommend you using JTAG connector for manufacturer of your part orĪVR/Byteblaster JTAG (which is compatible with many other products) or standard 8pin 'PLD' JTAG connector. If you are designing with ARM or MIPS microprocessor, we recommend using appropriate JTAG connector (EJTAG or ARM JTAG) to maintainĬompatibility with development tools. Motorola PowerPC BDM port Which JTAG pinout should I choose?.Xilinx JTAG 9pin Non-standard manufacturer-specific pinouts.Maxim MAXQ JTAG Partially compatible with AVR JTAG.Altera ByteBlaster Compatible with AVR, Altera JTAG.AVR JTAG Compatible with AVR, Altera JTAG.MIPS EJTAG used with all MIPS microcontrollers (mostly embedded devices, can be found on many WiFi devices).ARM-14 (used as a lower pin-count version of ARM-20).ARM-20 (used with almost all ARM-based microcontrollers).

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