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Texas Instruments TMS570LC4357 User Manual

Texas Instruments TMS570LC4357
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NMPU Registers
475
SPNU563AMarch 2018
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Copyright © 2018, Texas Instruments Incorporated
System Memory Protection Unit (NMPU)
Table 11-8. MPU Error Status Register (MPUERRSTAT) Field Descriptions (continued)
Bit Field Value Description
25 APERR Access Permission Error. This field is read only and is automatically reset by clearing the
ERRFLAG bit. This field is not updated when the ERRFLAG bit is set. Writes have no effect.
0 Access permission violation did not occur in any of the enabled MPU regions.
1 MPU compare fail generated because of access permission violation in one of the enabled MPU
regions.
24-19 Reserved 0 Reserved. Reads return 0.
18-16 REGION Region. This field is valid only when the APERR bit is 1. This field indicates the highest priority
MPU region for which an access permission error was detected. This field is read only and is
automatically reset by clearing the ERRFLAG bit. This field is not updated when the ERRFLAG bit
is set. Writes have no effect.
0 MPU compare fail generated because of access permission violation in region-0.
1h MPU compare fail generated because of access permission violation in region-1.
2h MPU compare fail generated because of access permission violation in region-2.
3h MPU compare fail generated because of access permission violation in region-3.
4h MPU compare fail generated because of access permission violation in region-4.
5h MPU compare fail generated because of access permission violation in region-5.
6h MPU compare fail generated because of access permission violation in region-6.
7h MPU compare fail generated because of access permission violation in region-7.
15-14 Reserved 0 Reserved. Reads return 0.
13-8 MASTERID Master ID for MPU compare fail. This field is valid only when APERR or BGERR bit is 1. This field
is read only and is automatically reset by clearing the ERRFLAG bit. This field is not updated when
the ERRFLAG bit is set. Writes have no effect.
Shows the master ID for the first transaction that resulted in a compare fail. Master ID is taken from
MReqInfo[8:3] bits.
7-1 Reserved 0 Reserved. Reads return 0.
0 ERRFLAG MPU compare error flag.
Read:
0 No MPU compare fail was detected.
1 At least one MPU compare fail was detected.
Write in Privilege:
0 Reserved. The bit remains unchanged.
1 Clears the bit.

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Texas Instruments TMS570LC4357 Specifications

General IconGeneral
BrandTexas Instruments
ModelTMS570LC4357
CategoryMicrocontrollers
LanguageEnglish

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