msm7630 Oki Semiconductor, msm7630 Datasheet - Page 45

• Manufacturer Part Number: msm7630
• Description: Universal Speech Processor
• Manufacturer: Oki Semiconductor

¡ Semiconductor
Bus Interface Unit
1. Features
The SCP’s bus interface unit (BIU) manages address space and outputs control signals that enable
optimal memory access. This allows ROM, SRAM, DRAM and other general devices to be accessed.
2. Address Space
The address space that can be directly accessed by load/store instructions is 4 gigabytes. The BIU
manages this address space by dividing it into several.
0xD0000000
0xC0000000
0x00000000
0x10000000
0x20000000
0x30000000
0x40000000
0x80000000
0xE0000000
0xDFFFFFFF
0xBFFFFFFF
0xCFFFFFFF
0x0FFFFFFF
0x1FFFFFFF
0x2FFFFFFF
0x3FFFFFFF
0x7FFFFFFF
0xFFFFFFFF
General devices
Internal ROM
Internal RAM
Registers
Reserved
Reserved
DRAM
SRAM
ROM
512 MB
256 MB
256 MB
256 MB
256 MB
256 MB
1 GB
4 GB
External
Internal
MSM7630
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