MPC574xP Clock Calculator Guide: How to use MPC5744P tool to easily calculate device frequency domains
●NXP's MPC574xP is a lockstep, dual-core 32-bit microcontroller intended for safety and chassis applications. This application note will refer to any device in the MPC574xP family, MPC5741P, MPC5742P, MPC5743P, and MPC5744P, as simply "MPC544P".
●The MPC5744P supports an 8-44 MHz external oscillator (XOSC), a 16 MHz internal RC oscillator (IRCOSC), and two phase locked loops (PLL) for a maximum operating frequency of 200 MHz. The IRCOSC is selected out of reset so increasing the operating frequency from 16 MHz requires additional configuration. The MPC574xP clock calculator is meant to complement the reference manual. It seeks to simplify the clock configuration process by providing a graphical, interactive tool to help the user find the correct register settings in order to achieve the desired clock frequencies.
●Accompanying this application note is the clock calculator. You can download it from MPC574xP_Clock_Calculator
●The clock calculator makes use of macros to perform functions like resetting the spreadsheet to initial values, configuring all clock frequencies to the maximum allowable settings, and copying generated code. Macros must be enabled in the user's MS Excel to access these features. If macros are turned off however, the tool will still be able to calculate clock frequencies, but the aforementioned features will be disabled. To turn on macros in MS Excel 2016, go to the Developer tab on the top toolbar and click on Macro Security. A popup window will appear. In it, select Enable all macros.
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MPC574xP 、 MPC5741P 、 MPC5742P 、 MPC5743P 、 MPC5744P 、 MPC544P |
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Clock Calculator 、 lockstep, dual-core 32-bit microcontroller |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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April 2018 |
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Rev. 9 |
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AN5393 |
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7.6 MB |
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