Hi,
We are using LS1043A, I kindly request you to please explain what is the purpose of these two pins?
1. JTAG_BSR_VSEL
2. TBSCAN_EN_B
What should i do with it?
Thanks
Have a great day,
JTAG_BSR_VSEL VSEL is a configuration input. It configures the output voltage mode of pads in JTAG BSR mode. Depending upon the requirement, this pin should either be set to 1 or 0. I.e. it should be pulled up to OVDD through a 2 - 4.7 kΩ resistor OR should be pulled down to ground through 2- 4.7 kΩ resistor.
0: functional mode - auto-mode and then configured by RCW
1: JTAG BSR mode - based on I/O config register control settings, pads are either configured in auto-mode or 3.3 V (max. allowable voltage)
TBSCAN_EN_B is a configuration input. Depending upon the requirement, this pin should either be pulled up to OVDD (through a 2 - 4.7 kΩ resistor) OR should be pulled down to ground (through 4.7 kΩ resistor).
TBSCAN_EN=0 means only FSL TAP connected to JTAG interface;
TBSCAN_EN=1 means FSL TAP in series with DAP.
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------