We unable to read the internal registers of SC18IS600 (spi-i2c bus bridge).

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We unable to read the internal registers of SC18IS600 (spi-i2c bus bridge).

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pasupuletirakesh1
Contributor I

We configured SPC570xx series micro-controller to SC18IS600 (spi-i2c bus bridge) in SPI mode. Here We unable to read the internal registers of SC18IS600. Could you please help me here.

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ViktorS
Contributor I

@pasupuletirakesh1 Did you resolve it?
@TomasVaverka in https://www.nxp.com/docs/en/data-sheet/SC18IS604.pdf the similar data to tables 13 and 14 https://www.nxp.com/docs/en/data-sheet/SC18IS600.pdf is missing. The same issue was observed.

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ViktorS
Contributor I

@pasupuletirakesh1 did you solve it?
@TomasVaverka in the datasheet for SC18IC604 timing tables are missing (tables 13 and 14 from *600 datasheet). The same issue appears. 

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TomasVaverka
NXP TechSupport
NXP TechSupport

Hi Rakesh,

Please ensure that all the AC timing and DC voltage requirements are met. Note that the SC18IC600 is compatible with SPI Mode 3 which means that the SCLK signal should be idle high and data is clocked in and out on the rising clock edge.

Fig. 19.JPG

Please also ensure that the tSPILEAD and tSPILAG timing requirements are met.

Best regards,

Tomas

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