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AN4253 Scheda tecnica(PDF) 11 Page - STMicroelectronics

Il numero della parte AN4253
Spiegazioni elettronici  SPC564Lx device startup flow
PDF  44 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4253 Scheda tecnica(HTML) 11 Page - STMicroelectronics

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AN4253
FCCU block
4
FCCU block
Figure 5. Flow of the "FCCU check block" phase
FCCU blocks monitors various fault signals coming from different parts of the SPC564Lx
microcontroller during runtime. FCCU module works in parallel to RGM module. It provides
safety measures to signal the fault when reset module fails. Details of FCCU module can be
found in AN3235 (see B.1: Reference documents).
Figure 6. FCCU block diagram
After the reset FCCU module can be in two states depending on the reset type:
•
Destructive/external
resets
FCCU initialized completely, all faults cleared by HW
•
Functional resets
FCCU untouched, status registers contain captured faults



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