FXTH87E FXTH87E, Family of Tire Pressure Monitor Sensors Rev. 6.1 21 June 2021 Reference manual Document information Information Content Keywords FXTH87E, TPMS, tire pressure monitoring sensor, low transmitting power consumption, large customer memory size, dual-axis accelerometer architecture, 8-bit microcontroller, MCU, pressure sensor, RF transmitter, XZ- axis accelerometer, Z-axis accelerometer Abstract This reference manual describes the features, architecture, and programming model of the FXTH87E family of devices.NXP Semiconductors FXTH87E FXTH87E, Family of Tire Pressure Monitor Sensors Revision history Table 1.Revision history Document ID Release date Description FXTH87ERM v.6.1 20210621 Section 4.3, addedpressure cooke note at the end of the section. FXTH87ERM v.6.0 20210517 The format of this data sheet has been redesigned to comply with the identity guidelines of NXP Semiconductors, N.V. Legal texts have been adapted to the company name where appropriate. Global changes as follows: Performed minor content/grammar, format, and typographic changes throughout. Replaced gray shading in cells, indicating reserved status, with the wordReserve or and removed legend tables identifying gray cells as= Reserve. Section 2.2: Added footnote on pressure and accelerometer features. Section 2.3Configuration option: Removed section. Section 2.4Part number definitio: Removed section. Section 2.5Part number definitio: Removed section. Section 6.3, revised as follows: Table 5: Revised and relocated descriptive text from above table to notes in the last row of the table, removed gray cell shading, and where appropriate, insertedReserve. Table 7, Table 8 and Table 9: Removed gray cell shading, and where appropriate, insertedReserve and removed Note from last row of the table. Section 6.4, Table 10: Removed gray cell shading, and where appropriate, insertedReserve, and revised associated notes in the table. Section 6.9.1, Table 12: Added textDIVL in Read row, bit 7 andReserve in the Write row for bit 7. Section 6.9.3, Table 18: MovedKEYAC from bit 7 to bit 6 and inserted0/Reserve for bit 7. Section 6.9.6, Table 24: ReplacedFCMD7 withReserve in bit 7 and inserted new Table 25. Section 7.4, Table 29: Removed reserved field 7 and description from the table. Section 7.9, Table 33: Revised bit 3 value from0 toReserve and removedField Descriptio 3, Unuse and the description from Table 34. Section 7.11.1, Table 37: Revised the field description for 0 fromUnused toReserve. Section 7.11.2, Table 39: Removed row for Field 0, Reserved. Section 7.11.3, Table 41: Removed row for Field 7, Reserved. Section 7.11.4, Table 43: Removed row for Field 1, Reserved. Section 7.11.5, Table 44, removed shading from bit 0 and removed table rows for 7 to 5, 3 and 0, allReserve in Table 45 and added note to the last row. Section 7.11.6, Table 46: Added new footnote 2 and removed row for Field 3:0, Reserved in Table 47. Section 7.12, Table 52: Removed row for Field 7 to 6, Reserved. Section 10.6.9, Table 75: Replaced shading in two empty cells with , and added header row on a supporting table with headersAddress mod andDescriptio. FXTH87ERM All information provided in this document is subject to legal disclaimers. NXP B.V. 2021. All rights reserved. Reference manual Rev. 6.1 21 June 2021 2 / 183