Texas Instruments OMAP5912 Reference Manual page 303

Multimedia processor device overview and architecture

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DSP Memory Space

Byte address

64K bytes−0X100 bytes

DSP subsystem

into MPU 32-bit

address space

Reset vectors

Emu/test vectors

L2 peripherals

Byte addresses 0xFF8000-0xFFFFFF map to PDROM for mpnmc = 0; otherwise, this range is mapped externally

DSP Subsystem

Word address

32 interrupt

The TMS320C55x DSP has 24-bit unified address space for both data and

program references.

* Program accesses are specified and displayed as byte addresses.

* Data objects are word addressable and are specified by 16-bit

word addresses.

* The DMA controller references byte addresses.

To access control and data registers associated with various OMAP5912

peripherals, the DSP uses 16-bit I/O space. This space is referenced

by using appropriate I/O access qualifiers with load or store instructions.

Restrictions apply for data objects spanning 64K-word (128K-byte) boundaries.

See TMS320C55x DSP CPU Reference Guide (SPRU371).

Table A DARAM block boundaries

Byte address

Table B SARAM block boundaries

Byte address

Word address

Word address

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