System Status And Configuration Module (Sscm) Configuration; Safety Modules; Register Protection (Reg_Prot) Configuration - STMicroelectronics SPC572L series Reference Manual

RM0400
6.7.10

System Status and Configuration Module (SSCM) configuration

This section summarizes the System Status and Configuration Module (SSCM)
configuration in the SPC572Lx. For a comprehensive description of the SSCM, please refer
to the SSCM's dedicated chapter.
6.7.10.1 SSCM instantiation
There is one SSCM instance in the SPC572Lx device. The SSCM is part of the
Reset and
6.7.10.2 Device-specific features
The SSCM will set the reset vector for the Core to execute from the BAF
Assist Flash
LINFlexD port without autobaud.
The device-specific reset values for the SSCM_MEMCONFIG register are shown in
Table 55.
1. This value will change for each minor revision of the device.
2. This value will change for each major revision of the device.
6.7.10.3 Protected registers
The SSCM registers are protected by a register protection module. After software has
activated the protection for a register, writes can only be performed in supervisor mode until
the protection is either deactivated by software or the device undergoes reset.
See the Register Protection chapter
detailed description of the register protection mechanism.
6.7.11

Safety modules

6.7.12

Register protection (REG_PROT) configuration

Some modules on this device include a built-in register protection mechanism that can be
used to override the normal write permissions associated with individual registers in the
module. This mechanism is software controlled and can be dynamically reconfigured at
runtime or made effective until device reset. For a detailed explanation, see the
Register Protection
Topic
System memory map
SIUL2 registers
Boot.
(BAF)). The BAF allows boot from Flash and external booting from the
Table 55. SSCM_MEMCONFIG reset values
Field
MREV
JPIN
(REG_PROT).
Table 56. Reference links to related information
Related module
—
SIUL2
DocID027809 Rev 4
Field definition
Minor Revision
JTAG Part ID
(Chapter 67: Register Protection
Chapter 5: Memory map
Chapter 13: System Integration Unit Lite2 (SIUL2)
Device configuration
Chapter 7:
(Chapter 52: Boot
Value
Minor silicon version
(2)
302h
(REG_PROT)) for a
Chapter 67:
Reference
(1)
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