mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 230

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

PP4—Protection for the Fourth 1K Subpage in a 4K Page
This field contains protection code for the fourth subpage in a 4K page. Depending on the
encoding mode, this field has different meanings.
PP3 SETTING
PP4 SETTING
SETTING
PP4
00
01
10
11
00
01
10
11
0x
1x
x0
x1
PRIVILEGED MODE
Executable
Executable
Executable
No access
INSTRUCTION PAGES
PAGES OVER 4K WITH 4K RESOLUTION PROTECTION
PAGES OVER 4K WITH 4K RESOLUTION PROTECTION
Freescale Semiconductor, Inc.
For More Information On This Product,
4K PAGES WITH 1K RESOLUTION PROTECTION
MPC823 REFERENCE MANUAL
PROBLEM MODE
Go to: www.freescale.com
Hit for both problem and privilege accesses
Executable
Executable
No access
No access
Hit only for privilege accesses
Hit only for problem accesses
CASE: Mx_CTR (PPCS) = 1
CASE: Mx_CTR (PPCS) = 0
Fourth subpage not valid
Third subpage not valid
Fourth subpage valid
Third subpage valid
No hit for any state
PRIVILEGED MODE
Read/Write
Read/Write
Read/Write
No access
DATA PAGES
Memory Management Unit
PROBLEM MODE
Read/Write
No access
No access
Read-only
11-13