topic Re: Guidance on Using Flash Memory for Both Code and Data Sections in NTM88Jxx5S TPMS in Sensors

Guidance on Using Flash Memory for Both Code and Data Sections in NTM88Jxx5S TPMS

vinithramarapunxp — Tue, 03 Feb 2026 23:41:25 GMT

Hello,

I am currently working with the NTM88Jxx5S Tire Pressure Monitor Sensor from NXP and have a few questions regarding its memory usage.

As per the datasheet, the 64 bytes of low-power “always on” NVM parameter registers are used to store data, but this data may be lost during power loss or disturbances. To ensure data retention during abnormal power cycles, I would like to utilize a portion of the (currently used only for code sections) to store critical data.

I would like to know:

Is it possible to allocate a portion of the 16KB flash memory for data storage alongside the code?
If yes, could you please provide a step-by-step process or guidelines for implementing this?
Are there any existing examples, reference code, or application notes to help in achieving this configuration?

I am attaching the datasheet and feature details for reference. Any insights, suggestions, or resources to move forward would be highly appreciated.

Looking forward to a quick response.

BR,

Vinith Ramarapu.

#flash_memory

Re: Guidance on Using Flash Memory for Both Code and Data Sections in NTM88Jxx5S TPMS

ErikaC — Tue, 03 Dec 2024 20:21:12 GMT

Hello,

Please see this community post: https://community.nxp.com/t5/Sensors/Splitting-Flash-Memory-for-Code-and-Data-in-NTM88Jxx5S-TPMS/td-p/2006117

As it addresses the same question, I will follow up there. If you have further questions, please post them in that thread.

Re: Guidance on Using Flash Memory for Both Code and Data Sections in NTM88Jxx5S TPMS

vinithramarapunxp — Wed, 04 Dec 2024 08:51:54 GMT

The link you provided for NTM88 – RAM and FLASH Memory Organization document included in the Starter Package for the NTM88 and NCK2910 is not working and it's unable to access that

Re: Guidance on Using Flash Memory for Both Code and Data Sections in NTM88Jxx5S TPMS

ErikaC — Wed, 04 Dec 2024 19:00:08 GMT

Please go to https://www.nxp.com/products/sensors/pressure-sensors/tire-pressure-monitoring-sensors-tpms/ntm88-highly-integrated-tire-pressure-sensor-family:NTM88

Scroll down to Software and click on Starter Package for NTM88 and NCK2910.

Re: Guidance on Using Flash Memory for Both Code and Data Sections in NTM88Jxx5S TPMS

vinithramarapunxp — Thu, 05 Dec 2024 09:33:16 GMT

Thank you mate, but this still doesn't answer my initial questions. I just need to know whether splitting the 16KB RAM into Data and code sections is possible. If so curate some references or examples as such. Thank you in advance.