mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 229

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

Memory Management Unit
PP3—Protection for the Third 1K Subpage in a 4K Page
This field contains protection code for the third subpage in a 4K page. Depending on the
encoding mode, this field has different meanings.
PP2 SETTING
PP3 SETTING
SETTING
PP3
00
01
10
11
0x
1x
x1
x0
0x
1x
x0
x1
PRIVILEGED MODE
Executable
Executable
Executable
No access
INSTRUCTION PAGES
PAGES OVER 4K WITH 4K RESOLUTION PROTECTION
Freescale Semiconductor, Inc.
For More Information On This Product,
4K PAGES WITH 1K RESOLUTION PROTECTION
PAGES OVER 4K WITH 4K RESOLUTION PROTECTION
MPC823 REFERENCE MANUAL
PROBLEM MODE
Go to: www.freescale.com
Executable
Executable
No access
No access
PP1 contains Extended Encoding
PP1 contains PowerPC encoding
CASE: Mx_CTR (PPCS) = 0
Second subpage not valid
Page is write-protected
First subpage not valid
Second subpage valid
First subpage valid
Page is writable
PRIVILEGED MODE
Read/Write
Read/Write
Read/Write
No access
DATA PAGES
PROBLEM MODE
Read/Write
No access
No access
Read-only
MOTOROLA