Safety
MPC5606S Microcontroller Reference Manual, Rev. 7
Freescale Semiconductor
111
Chapter 4
Safety
4.1
Register protection
4.1.1
Introduction
4.1.1.1
Overview
The Register Protection module offers a mechanism to protect defined memory-mapped address locations
in a module under protection from being written. The registers that are protected on this device are listed
in
Appendix A, Registers Under Protection
The protection module is located between the module under protection and the PBRIDGE. This is shown
in
Figure 4-1. Register Protection block diagram
4.1.1.2
Features
The Register Protection includes these distinctive features:
•
Restrict write accesses for the module under protection to supervisor mode only
•
Lock registers for first 6 KB of memory-mapped address space
•
Address mirror automatically sets corresponding lock bit
PBRIDGE /
APB
supervisor access /
Lock
Registers
Module
under
Protection
Protection Module
write data
address / access size
UAA
HLB
GCR
Access allowed?
peripheral enable
Other control signals
peripheral
enable
Содержание MPC5602S
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Страница 82: ...Memory Map MPC5606S Microcontroller Reference Manual Rev 7 80 Freescale Semiconductor...
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Страница 1213: ...System Integration Unit Lite SIUL MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 1211...
Страница 1214: ...System Integration Unit Lite SIUL MPC5606S Microcontroller Reference Manual Rev 7 1212 Freescale Semiconductor...
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Страница 1252: ...Wakeup Unit WKPU MPC5606S Microcontroller Reference Manual Rev 7 1250 Freescale Semiconductor...
Страница 1258: ...Registers Under Protection MPC5606S Microcontroller Reference Manual Rev 7 1256 Freescale Semiconductor...
Страница 1323: ...Register Map MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 1321...
Страница 1324: ...Register Map MPC5606S Microcontroller Reference Manual Rev 7 1322 Freescale Semiconductor...