https://community.nxp.com/t5/LPC-Microcontrollers/LPC8N04-How-does-one-enter-Battery-off-mode/m-p/1500896#M49765 <P>HI</P> <P>The LPC8N04 platform accepts power from two different sources:&nbsp;external power supply pin VDDBAT( domain VBAT) and built-in NFC/RFID (domain VNFC).&nbsp;PSWBAT and&nbsp;PSWNFC are power switches</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="ZhangJennie_0-1659599902083.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/189059i5CCFB1FDAB01803E/image-size/medium?v=v2&amp;px=400" role="button" title="ZhangJennie_0-1659599902083.png" alt="ZhangJennie_0-1659599902083.png" /></span></P> <P>We can control PATAT for it</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="ZhangJennie_1-1659599941332.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/189060i0BBA459DB80CE2D9/image-size/medium?v=v2&amp;px=400" role="button" title="ZhangJennie_1-1659599941332.png" alt="ZhangJennie_1-1659599941332.png" /></span></P> <P>&nbsp;</P> <P>Hope this helps</P> <P>Jun Zhang</P> <P>&nbsp;</P> Thu, 04 Aug 2022 07:59:19 GMT ZhangJennie 2022-08-04T07:59:19Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC8N04-How-does-one-enter-Battery-off-mode/m-p/1498103#M49728 <P>The user guide mentions "Additionally the chip can be put into the Battery-off mode, which reduces current to nA levels."</P><P>But it never states how to enter battery-off mode. I tried setting PCON:VBAT to 1 but that didn't have the intended result.</P><P>Does anyone know how to use this feature? I'd like to have the device enter&nbsp;battery-off mode until it receives an NFC signal.</P> Fri, 29 Jul 2022 15:07:50 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC8N04-How-does-one-enter-Battery-off-mode/m-p/1498103#M49728 raven_coda 2022-07-29T15:07:50Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC8N04-How-does-one-enter-Battery-off-mode/m-p/1500896#M49765 <P>HI</P> <P>The LPC8N04 platform accepts power from two different sources:&nbsp;external power supply pin VDDBAT( domain VBAT) and built-in NFC/RFID (domain VNFC).&nbsp;PSWBAT and&nbsp;PSWNFC are power switches</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="ZhangJennie_0-1659599902083.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/189059i5CCFB1FDAB01803E/image-size/medium?v=v2&amp;px=400" role="button" title="ZhangJennie_0-1659599902083.png" alt="ZhangJennie_0-1659599902083.png" /></span></P> <P>We can control PATAT for it</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="ZhangJennie_1-1659599941332.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/189060i0BBA459DB80CE2D9/image-size/medium?v=v2&amp;px=400" role="button" title="ZhangJennie_1-1659599941332.png" alt="ZhangJennie_1-1659599941332.png" /></span></P> <P>&nbsp;</P> <P>Hope this helps</P> <P>Jun Zhang</P> <P>&nbsp;</P> Thu, 04 Aug 2022 07:59:19 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC8N04-How-does-one-enter-Battery-off-mode/m-p/1500896#M49765 ZhangJennie 2022-08-04T07:59:19Z