If you would like to tie VCC and VIO together with the same power supply 3.3V, it makes no problem. The implementation fulfills the condition that 'during power-up or power-down VCC must always be greater than or equal to VIO (VCC >= VIO)'. This can be found at http://www.cypress.com/file/177976/download (page 70, 10.4.3 Power-Up and Power-Down).
Thank you for your reply.
I understand your answer
I think that the question can be closed with this answer.
Thank you for cooperation.