LPC5536JBD100 Silicon 0A

mf89 — Sat, 12 Jul 2025 15:09:02 GMT

Hi.

We just saw a message in pin_mux.c

/* Note: PIO0_31 I3C0_SCL only works on A1 chip. */ IOCON->PIO[0][31] = ((IOCON->PIO[0][31] & /* Mask bits to zero which are setting */ (~(IOCON_PIO_FUNC_MASK | IOCON_PIO_DIGIMODE_MASK | IOCON_PIO_OD_MASK))) /* Signal(function) select: PORT031 (pin 23) is configured as I3C0_SCL. */ | IOCON_PIO_FUNC(0x0Fu) /* Select Digital mode: Enable Digital mode. * Digital input is enabled. */ | IOCON_PIO_DIGIMODE(PIO0_31_DIGIMODE_DIGITAL) /* Controls open-drain mode: Open-drain. * Simulated open-drain output (high drive disabled). */ | IOCON_PIO_OD(PIO0_31_OD_OPEN_DRAIN));

It says PIO0_31 I3C0_SCL only works on A1 chip. Is this true ?? If yes how is that not documented anywhere clearly ?

We just have a whole Prototype Series of PCBs that go to the trash if this is correct.

This should be marked in RED color and Double the Font Size in the Datasheet.

Re: LPC5536JBD100 Silicon 0A

Harry_Zhang — Mon, 14 Jul 2025 08:09:41 GMT

Hi @mf89

Yes, this is explained in the comments.

Thanks for your understanding.

Harry

Re: LPC5536JBD100 Silicon 0A

danielholala — Thu, 31 Jul 2025 07:27:24 GMT

I agree. Errata like this should be more clearly marked and not hidden in a footnote. Marked in red color and bold print would do.

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LPC5536JBD100 Silicon 0A

Re: LPC5536JBD100 Silicon 0A

Re: LPC5536JBD100 Silicon 0A