TCAN1145-Q1: Case evaluation

Alan Xia

Genius 11120 points

Part Number: TCAN1145-Q1

Hi team，

The customer proposed the following solution, please help to see if it is feasible?

I feel it is similar to this description.

over 2 years ago

0 Eric Hackett over 2 years ago

TI__Guru 74552 points

Alan,

Yes, this is feasible as long as the chip selects are used to correct address the right device. The other SPI lines can be shared.

Regards,

Eric Hackett

0 Alan Xia over 2 years ago in reply to Eric Hackett

TI__Genius 11120 points

Hi Eric，

one more question：

When CS_A is enabled and CS_B is disabled, what is the status of MISO, MOSI, and MCLK of CAN B? Is it low level or high impedance? Will it affect the normal communication of CAN A SPI?

0 Eric Hackett over 2 years ago in reply to Alan Xia

TI__Guru 74552 points

Alan,

The other SPI pins are high impedance in order to have no effect on other SPI lines connected to them.

Regards,

Eric Hackett

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TCAN1145-Q1: Case evaluation