S32KのトピックRe: What is VRC_CTRL?

What is VRC_CTRL?

malove — Tue, 22 Oct 2024 08:37:43 GMT

Hello

I have a question regarding the power management section of the S32K314 MCU.

studyseok8466_1-1729586150245.png

[Figure1]

In [Figure 1], it appears that VRC_CTRL is the signal responsible for determining whether to supply 1.5V to the internal core. My question is, does VRC_CTRL enter the BASE through GPIO, or is it input as a different waveform?

Thank you for your help!

Re: What is VRC_CTRL?

PavelL — Tue, 22 Oct 2024 13:13:46 GMT

Hi @malove ,

if VRC_CTRL is not used (please refer to S32K3XXRM rev9 chapter 42.7.3 PMC Configuration Register (CONFIG), bits LMBCTLEN and LMEM), the pin can be used as PTE13.

Best regards,

Pavel

Re: What is VRC_CTRL?

malove — Tue, 22 Oct 2024 22:59:56 GMT

Thank you @PavelL

If I am using VRC_CTRL, is the output of VRC_CTRL PWM?

Re: What is VRC_CTRL?

PavelL — Wed, 23 Oct 2024 05:27:52 GMT

Hi @malove ,

No, it is an analog signal which controls base of external BJT, as it is depicted on your picture.

Best regards,

Pavel

Re: What is VRC_CTRL?

malove — Wed, 23 Oct 2024 05:38:33 GMT

Thank you!!