Format Of The Cp15 Translation Table Base Register; Format Of The Cp15 Domain Access Control Register - Texas Instruments OMAP5910 Technical Reference Manual

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Figure 2–3. Format of the CP15 Translation Table Base Register

Translation Table Base

Figure 2–4. Format of the CP15 Domain Access Control Register

Reading from CP15 register 2 returns the pointer to the currently active first-

level translation table in bits 31 – 14 and an unpredictable value in bits 13 – 0.

The CRm and opcode_2 fields are SBZ when reading this register.

Writing to CP15 register 2 updates the pointer to the currently active first-level

translation table from the value in bits 31 – 14 of the written value. Bits 13 – 0

must be written as zero. The CRm and opcode_2 fields are SBZ when writing

to this register.

Reading from CP15 register 3 returns the value of the domain access control

Writing to CP15 register 3 writes the value of the domain access control

The CRm and opcode_2 fields are SBZ when writing to this register.

The domain access control register consists of sixteen two-bit fields, each

defining the access permissions for one of the 16 domains (D15-D0).

Table 2–8 gives more details on the meaning of each field.

Data, instructions, or both can use each of these domains. Two basic kinds of

users are supported: clients and managers.

Coprocessor 15

MPU Subsystem