Hi,
I read the BIST Register after power-on reset, the result is 0x0, it means all the 4 bits of BIST reault are NOTOK. But after a 8ms delay, I read this register again, it returns 0xD, it means ABIST2_VAUX is NOTOK, and other bits such as LBIST, ABIST1, ABIST2_FS1B are Normal. Why does it need a delay, what's the possible reason about it?
Best Regards,
Jamber
Solved! Go to Solution.
Hi Jamber,
the 8ms is actually quite short delay time. According to the datasheet, the Reset delay time after a power on reset is typically 16.5ms, minimally 12.5ms. Please refer to the Table 6. in the datasheet attached.
With Best Regards,
Jozef