LMK04828 4 wire spi mode

It outputs at the same time as the SDIO line shown in the timing diagram, Figure 2-1.

73,

Timothy

Hi Tim:  

Understood but I wonder if figure 2-1 could be in error.  Attached find a scope shot of SDIO and SCLK during a read back.  SDIO appears to transition on the rising edge of SCLK not as indicated by figure 2-1.   ?

Anything further?  The observations appear to be contrary to the info in the data sheet.

I'm afraid I can't think of any reason for the data to change on rising clock edge.  It should change on falling clock edge.  In 4 wire mode the outputs can be set to invert the DATA, but that wouldn't change your issue.

Is 3 wire mode resulting in proper timing?

At this point, I would need to try and reproduce your situation.  Can you send me a register dump (or saved .mac file from codeloader) I could use and which pin you are using for read back?

Is this on the evaluation board or your system board?

73,

Timothy

Here is a register dump.  Observations are on a customer board.  It would be great if you could confirm at your end. 

0x000080, 0x000000, 0x000200, 0x010002, 0x010155,

        0x010300, 0x010402, 0x010500, 0x0106F1, 0x010704,

        0x010810, 0x010955, 0x010B00, 0x010C02, 0x010D00,

        0x010EF1, 0x010F01, 0x011019, 0x011155, 0x011301,

        0x011402, 0x011500, 0x0116F1, 0x011703, 0x011819,

        0x011955, 0x011B01, 0x011C02, 0x011D00, 0x011EF1,

        0x011F03, 0x012014, 0x012155, 0x012301, 0x012402,

        0x012500, 0x0126F1, 0x012701, 0x012819, 0x012955,

        0x012B01, 0x012C02, 0x012D00, 0x012EF1, 0x012F03,

        0x013019, 0x013155, 0x013301, 0x013402, 0x013500,

        0x0136F1, 0x013703, 0x013800, 0x013900, 0x013A0C,

        0x013B00, 0x013C00, 0x013D08, 0x013E03, 0x013F00,

        0x01400F, 0x014100, 0x014200, 0x014311, 0x014400,

        0x01457F, 0x014618, 0x01470A, 0x014800, 0x014940,

        0x014A02, 0x014B16, 0x014C00, 0x014D00, 0x014EC0,

        0x014F7F, 0x015003, 0x015102, 0x015200, 0x015300,

        0x015464, 0x015500, 0x015664, 0x015700, 0x015896,

        0x015900, 0x015A64, 0x015BD4, 0x015C20, 0x015D00,

        0x015E00, 0x015F0B, 0x016000, 0x016102, 0x016244,

        0x016300, 0x016400, 0x01650C, 0x017C15, 0x017D33,

        0x016600, 0x016700, 0x016819, 0x016959, 0x016A20,

        0x016B00, 0x016C00, 0x016D00, 0x016E13, 0x017300,

Ok, thanks for the info.