DSP56303 FREESCALE [Freescale Semiconductor, Inc], DSP56303 Datasheet - Page 20
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DSP56303
Manufacturer Part Number
DSP56303
Description
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.DSP56303.pdf
(292 pages)
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DSP56303 Overview
Further features of external memory include the following:
1.7 Internal Buses
To provide data exchange between the blocks, the DSP56303 implements the following buses:
The block diagram in Figure 1-1 illustrates these buses among other components. All internal
buses on the DSP56300 family members are 24-bit buses. The program data bus is also a 24-bit
bus.
1-10
Program memory expansion to one 256 K × 24-bit words memory space using the
standard external address lines
External memory expansion port
Simultaneous glueless interface to static random access memory (SRAM) and dynamic
random access memory (DRAM)
Peripheral I/O expansion bus to peripherals
Program memory expansion bus to program ROM
X memory expansion bus to X memory
Y memory expansion bus to Y memory
Global data bus between PCU and other core structures
Program data bus for carrying program data throughout the core
X memory data bus for carrying X data throughout the core
Y memory data bus for carrying Y data throughout the core
Program address bus for carrying program memory addresses throughout the core
X memory address bus for carrying X memory addresses throughout the core
Y memory address bus for carrying Y memory addresses throughout the core.
DSP56303 User’s Manual, Rev. 2
Freescale Semiconductor