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CC3100: CC3100 SPI MISO Problem

Part Number: CC3100

We are using a CC3100 in our board with SPI Interface.

Our problem is that the CC3100 does not respond anything in the MISO line. Our schematics is equal CC3100boost_sch_rev4p0-a.pdf page2.

Our signal are:

RESET '1'.

CLK = 6MHz Polarity = 0 and Phase = 0.

MOSI: Sended: 0x65 0x87 0x56 0x78.

INTR = '1'. 

nHIB = '1'

MISO = Always '0'.

What do we need to verify activity (0xBA, 0xDC, 0xCD, 0xAB)??

One more information: Over UART we do not see a problem, we flash the SPI and read parameters of the CC3100R1.