![Infineon Technologies TC1784 Скачать руководство пользователя страница 705](http://html.mh-extra.com/html/infineon-technologies/tc1784/tc1784_user-manual_2055446705.webp)
TC1784
Peripheral Control Processor (PCP)
User´s Manual
10-40
V1.1, 2011-05
PCP, V2.09
Figure 27
PRAM Regions
Note:
shows a typical configuration that might be used. Configuration is
sufficiently flexible, however, that all of, none of, or any combination of the above
regions can be implemented and that the region boundaries can be set with a
granularity of at least 256 bytes.
While
shows four regions, in reality the protection scheme can be seen from
two viewpoints:-
•
Protection from FPI writes (see
).
•
Protection from internally generated PRAM writes (see
Protection of PRAM is provided to allow running of system critical tasks on the PCP.
Protection means that such tasks can be made immune from failures outside of the PCP
or indeed from software failures in non-critical tasks running on the PCP itself.
PRAM protection is based around the concept of “Protected” and “Unprotected” Channel
Programs. A “Protected” channel program is one that is running a critical system task
and is termed “Protected” since it (and any other Protected Channel Programs) have
Open PRAM
General Channel PRAM
Protected Channel PRAM
Context
Region
Writable by PCP Software?
Writable by FPI?
Yes
Yes
No
No
No
Yes
Yes/No
(can be limited to writes by
Protected Channels only)
Yes/No
(can be protected against
writes by all channels)
CS.PPS
PPROT.PSIZE
PPROT.FBASE
Содержание TC1784
Страница 1: ...User s Manual V1 1 2011 05 Microcontrollers TC1784 32 Bit Single Chip Microcontroller ...
Страница 3: ...User s Manual V1 1 2011 05 Microcontrollers TC1784 32 Bit Single Chip Microcontroller ...
Страница 950: ...TC1784 Direct Memory Access Controller DMA User s Manual 11 132 V1 1 2011 05 DMA V3 03 ...
Страница 1949: ...TC1784 General Purpose Timer Array GPTA v5 User s Manual 21 297 V1 1 2011 05 GPTA v5 V1 14 ...
Страница 2350: ...w w w i n f i n e o n c o m Published by Infineon Technologies AG Doc_Number ...