This is a quick-hit post because as I’ve been working on some hardware hacking efforts I realized that while there are a lot of good resources on identifying JTAG interfaces and standards, there wasn’t really a good single page view of them. With that in mind, I lifted the following images from the excellent resource at http://www.jtagtest.com/pinouts/ and put them into a single page view. Full credit to JTAGtest… I just wanted something I could quickly reference.
Before all of the images, a quick reference on the more common naming conventions:
- +5V = 5 volt power
- +12V = 12 volt power
- CS# = Chip Select
- DBGRQ = Debug Request
- DSCK = Digital Simple Clock
- DSDI = Digital Simple Data Interface
- GND = Ground
- ISR = In System Reprogramming
- MISO = Master In Slave Out
- MOSI = Master Out Slave In
- RTCK = Return Test Clock
- SCK = Clock Signal
- SRESET = System Reset
- SRST = System Reset
- TCK = Test Clock
- TDI = Test Data In
- TDO = Test Data Out
- TMS = Test Mode Select
- TRST = Test Reset
- VCC = Voltage Controlled Clock
- VLFS_ = Voltage Low and Full Speed
- VPUMP = Programming Voltage
- VREF = Voltage Reference
- VTREF = Voltage Reference
- VSUPPLY = Voltage Supply
Hermit's Cave 