Hi all,
we are working on a new board based on LS1012A SOC that includes secure boot feature. The TA_PROG_SFP PIN that enables secure boot has to be powered with 1.8V to burn internal fuses.
According to the LS1012A DS, "For all other operating conditions, TA_PROG_SFP must be tied to GND.". This create a manufacturing issue since we need to program the board and then, rework it with a 0ohm.
Here my questions:
1. Is it acceptable to tie TA_PROG_SFP to GND by a 100ohm resistor?
2. What would be the maximum resistor value?
Thank in advance for your support.
M.
Solved! Go to Solution.
300 Ohm resistors are used on NXP development boards.
It is recommended implementing the same way.
300 Ohm resistors are used on NXP development boards.
It is recommended implementing the same way.