88mw300/320 Brown-out Detection configuration,

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88mw300/320 Brown-out Detection configuration,

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ksumi
Contributor I

With the Brown-out Detection configuration, I don't understand the following.

1.PMIP_BRNDET_VBAT register
  Set 0/1/2/3 for brndet_vbat_filt. I don't know what kind of filter operation this value works.

2.PMIP_BRN_INT_SEL register
  Please tell me how to set this interrupt when "generate interrupt when VBAT brown-out" is set.

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ksumi
Contributor I

Hello,

I know the value of the register. What you want to know is the meaning of the value.

22.72.2 has parameter explanations for PMIP_BRNDET_VBAT.brntrig_vbat_cntl and PMIP_BRNDET_VBAT.brnhyst_vbat_cntl. I know this.

PMIP_BRNDET_VBAT.brntrig_vbat_cntl is as follows.
0: 1.6V
1: 1.7V
2: 1.8V
3: 2.7V
4: 2.6V
5: 2.8V
6: 2.9V
7: 3.0V

PMIP_BRNDET_VBAT.brnhyst_vbat_cntl is as follows.
0: 0mV
1:41 mV
2:66 mV
3:85 mV


There is no paratha description for PMIP_BRNDET_VBAT.brnhyst_vbat_filt. So I want to know.
0: How does this filter work?
1: How does this filter work?
2: How does this filter work?
3: How does this filter work?


If I select "generate interrupt when VBAT brown-out" in PMIP_BRN_INT_SEL.pmip_brn_int_sel, where should I look for that interrupt?

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estephania_mart
NXP TechSupport
NXP TechSupport

Hello,

 

For the first part could you please help us check the 22.7.2 Brown-Out Detection (BOD) Specifications ?

Related to the second question , the PMIP_BRN_INT_SEL has an offset of 0x020 and is from 31:0. You will need to set a 1 according to the byte 0, you can check the chapter  24.20.2.9 PMIP Brown Interrupt Select (PMIP_BRN_INT_SEL). 

 

Regards,
Estephania

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ksumi
Contributor I

Hello,

I know the value of the register. What you want to know is the meaning of the value.

22.72.2 has parameter explanations for PMIP_BRNDET_VBAT.brntrig_vbat_cntl and PMIP_BRNDET_VBAT.brnhyst_vbat_cntl. I know this.

PMIP_BRNDET_VBAT.brntrig_vbat_cntl is as follows.
0: 1.6V
1: 1.7V
2: 1.8V
3: 2.7V
4: 2.6V
5: 2.8V
6: 2.9V
7: 3.0V

PMIP_BRNDET_VBAT.brnhyst_vbat_cntl is as follows.
0: 0mV
1:41 mV
2:66 mV
3:85 mV


There is no paratha description for PMIP_BRNDET_VBAT.brnhyst_vbat_filt. So I want to know.
0: How does this filter work?
1: How does this filter work?
2: How does this filter work?
3: How does this filter work?


If I select "generate interrupt when VBAT brown-out" in PMIP_BRN_INT_SEL.pmip_brn_int_sel, where should I look for that interrupt?

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ksumi
Contributor I


If I select "generate interrupt when VBAT brown-out" in PMIP_BRN_INT_SEL.pmip_brn_int_sel, where should I look for that interrupt?

I understand this interrupt. The following IRQ.

Brnout INT Brnout Level Active High INTIRQ[61]

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Alexis_A
NXP TechSupport
NXP TechSupport

Hello,

For [13:12] brndet_vbat_filt. Select filter level for Vbat Pulse to Vbat Brndet.

  •  00: 25uS
  •  01: 50uS
  •  10: 100uS
  •  11: 200uS.

The register filter the glitch and monitor VBAT pulse for triggering the BOD. 

Best Regards,
Alexis Andalon

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