AN4124 datasheet(18/32 Pages) STMICROELECTRONICS

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FCCU settings

AN4124

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Doc ID 023294 Rev 2

5.4

LOCK FCCU configuration

The configuration state is used to modify the default configuration of the FCCU only. A sub-

set of the FCCU registers, dedicated to defining the FCCU configuration (global

configuration, reactions to fault, time-out, non-critical fault masking), can be accessed in

write mode, in the CONFIG state only.

The CONFIG state is accessible in NORMAL state only and only if the configuration is not

locked. The configuration lock can be disabled only by a global reset of the FCCU. To lock

the FCCU see Section A.2.3 0 function.

5.5

Hardware: XPC56XL minimodule

The examples are executed by XPC56EL minimodule, using the motherboard. The

motherboard provides common functionality used in most applications, such as serial

communication interface, CAN transceivers, SPI bus, I/O pins, power supply, buttons and

LEDs. The minimodule provides a minimum setup for the microprocessor, for example,

socket for the processor, crystal oscillator and debug interface. Figure 2 displays the

XPC56XL minimodule layout.

Figure 2.

XPC56EL minimodule

GAPGCFT00698

AN4124 Datasheet(PDF) 18 Page - STMicroelectronics