Hello,
My customer uses the TL16C550D.
He uses that under conditions as attach file.
2133.1805.TL16C550D_timing.pdf
According to the datasheet, the hold time CS valid after /RD is 10nsec (min.).
But his CPU format, these signal change at the same time. So the hold time is 0nsec.
Is it possible to operate?
Regards,
Naoki Aoyama