Motorola MPC823e Reference Manual page 229

PAGES OVER 4K WITH 4K RESOLUTION PROTECTION (EXTENDED ENCODING)
PP1 INSTRUCTION PAGES
SETTING
PRIVILEGED MODE
00 No access
01 Executable
10 Reserved
11 Reserved
PAGES OVER 4K WITH 4K RESOLUTION PROTECTION (POWERPC ENCODING)
PP1 INSTRUCTION PAGES
SETTING
PRIVILEGED MODE
00 Executable
01 Executable
10 Executable
11 Executable
PP2—Protection for a Second 1K Subpage in a 4K Page
This field contains a protection code for the second subpage in a 4K page. Depending on
the encoding mode, this field has different meanings.
PP2 INSTRUCTION PAGES
SETTING
PRIVILEGED MODE
00 No access
01 Executable
10 Executable
11 Executable
MOTOROLA
PROBLEM MODE
No access
No access
Reserved
Reserved
PROBLEM MODE
Executable
No access
Executable
Executable
4K PAGES WITH 1K RESOLUTION PROTECTION
PROBLEM MODE
No access
No access
Executable
Executable
MPC823e REFERENCE MANUAL
Memory Management Unit
DATA PAGES
PRIVILEGED MODE PROBLEM MODE
No access No access
Read-only No access
Reserved Reserved
Reserved Reserved
DATA PAGES
PRIVILEGED MODE PROBLEM MODE
Read-only Read-only
Read-only No access
Read/Write Read-only
Read/Write Read/Write
DATA PAGES
PRIVILEGED MODE PROBLEM MODE
No access No access
Read/Write No access
Read/Write Read-only
Read/Write Read/Write
11-11