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3.2.6 Wired register (6)
The Wired register is a read/write register that specifies the lower boundary of the random entry of the TLB as
shown in Figure 3-6. Wired entries cannot be overwritten by a TLBWR instruction, but by a TLBWI instruction.
Random entries can be overwritten by both instructions.
Range specified by
the Random register
Range of Wired
The Wired register is set to 0 upon Cold Reset. Writing this register also sets the Random register to the value of
its upper bound (see 3.2.2 Random register (1)).
31
Wired:
TLB wired boundary
0:
Reserved for future use. Write 0 in a write operation. When this field is read, 0 is read.
CHAPTER 3 CP0 REGISTERS
Figure 3-6. Positions Indicated by the Wired Register
TLB
entries
Figure 3-7. Wired Register
0
User's Manual U14272EJ3V0UM
31
Value in the Wired register
0
5 4
Wired
0
73
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