MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
Freescale Semiconductor
3-17
The MAS2 register is shown in
.
Table 3-4. MAS1 —Descriptor Context and Configuration Control
Bits
Name
Description
0
VALID
TLB entry valid
0 This TLB entry is invalid.
1 This TLB entry is valid.
1
IPROT Invalidation protect
0 Entry is not protected from invalidation.
1 Entry is protected from invalidation.
Protects TLB entry from invalidation by tlbivax (TLB1 only), or flash invalidates through
MMUCSR0[TLB1_FI].
2–7
—
Reserved, should be cleared.
8–15
TID
Translation ID bits
This field is compared with the current process IDs of the effective address to be translated. A TID
value of 0 defines an entry as global and matches with all process IDs.
16–18
—
Reserved, should be cleared.
19
TS
Translation address space
This bit is compared with the IS or DS fields of the MSR (depending on the type of access) to
determine if this TLB entry may be used for translation.
20–23
TSIZE
Entry page size
Supported page sizes are:
0b00014 Kbytes 0b01104 Mbytes
0b001016 Kbytes
0b011116 Mbytes
0b001164 Kbytes
0b100064 Mbytes
0b0100256 Kbytes
0b1001256 Mbytes
0b01011 Mbyte
All other values are undefined.
24–31
—
Reserved, should be cleared.
0
19
20
26
27
28
29
30
31
Field
EPN
—
W
I
M
G
E
Reset
Undefined on Power Up
Unchanged on Reset
R/W
R/W
SPR
SPR 626
Figure 3-9. MMU Assist Register 2 (MAS2)
Table 3-5. MAS2—EPN and Page Attributes
Bits
Name
Description
0–19
EPN
Effective page number
20–26
—
Reserved, should be cleared.
Summary of Contents for MPC5553
Page 5: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 2 Freescale Semiconductor...
Page 21: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 xvi Freescale Semiconductor...
Page 47: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 1 26 Freescale Semiconductor...
Page 163: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 4 20 Freescale Semiconductor...
Page 179: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 5 16 Freescale Semiconductor...
Page 561: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 13 38 Freescale Semiconductor...
Page 615: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 14 54 Freescale Semiconductor...
Page 707: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 17 68 Freescale Semiconductor...
Page 755: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 18 48 Freescale Semiconductor...
Page 873: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 19 118 Freescale Semiconductor...
Page 984: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 Freescale Semiconductor 21 41...
Page 985: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 21 42 Freescale Semiconductor...
Page 1019: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 22 34 Freescale Semiconductor...
Page 1129: ...MPC5553 MPC5554 Microcontroller Reference Manual Rev 5 25 90 Freescale Semiconductor...