Other Parts Discussed in Thread: TMDSEMU110-U, TMDSEMU200-U, TMDSEMU560V2STM-U
Hello,
I am designing a custom board of TI MPU, modeled AM62x.
I have been examining AM62A STARTER KIT EVM.
Here is a question I have while looking at the schematic.
In according to JTAG connection part in the schematic, bi-directional voltage translator as buffer is used to seperate XDS110 IC(placed on the EVM) and external JTAG 20 pin connector.(based on my understanding)
Is there a reason that 4 bits IC is used? (only used for TRST, TCK, TMS, TDI)
There are more pin for JTAG such as EMU0, EMU1, TDO.
I don't consider TCK buffer pins(TCK, RTCK) in this issue.
I guess I can use other 8-bit IC for all those pins, such as SN74AVC8T245RHL(this is also used for boot mode buffer in the schematic as well.)
Can I design my schematic with the pins(TRST, TCK, TMS, TDI, TDO, EMU0, EMU1) by using SN74AVC8T245RHL(8-bit)?
I wonder if it might be a problem or not.
Regards.