Freescale Semiconductor MPC5565, Reference Manual

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e200z6 Core Complex
MPC5565 Microcontroller Reference Manual, Rev. 1.0
3-16 Freescale Semiconductor
Figure 3-6. Granting of Access Permission
3.3.1.5 MMU Assist Registers (MAS[0:4], MAS[6])
The e200z6 uses six special purpose registers (MAS[0], MAS[1], MAS[2], MAS[3], MAS[4], and
MAS[6]) to facilitate reading, writing, and searching the TLBs. The MAS registers can be read or written
using the
mfspr and mtspr instructions. The e200z6 does not implement the MAS5 register, present in
other Freescale EIS designs, because the tlbsx instruction only searches based on a single SPID value.
For more information on the MAS n registers is available in the e200z6 PowerPC
TM
Core Reference
Manual .
Access Granted
Instruction Fetch
MSR[PR]
TLB_entry[UX]
TLB_entry[SX]
Load-class Data Access
TLB_entry[UR]
TLB_entry[SR]
Store-class Data Access
TLB_entry[UW]
TLB_entry[SW]
TLB