SH7751 Datasheet, PDF(172/1224 Page) Renesas Technology Corp – 32-Bit RISC Microcomputer

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SH7751 Datasheet, PDF (172/1224 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

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3. Memory Management Unit (MMU)

3.3.2 External Memory Space

The SH-4 supports a 29-bit external memory space. The external memory space is divided into

eight areas as shown in figure 3.5. Areas 0 to 6 relate to memory, such as SRAM, synchronous

DRAM, DRAM, and PCMCIA. Area 7 is a reserved area. For details, see section 13, Bus State

Controller (BSC).

H'0000 0000

H'0400 0000

H'0800 0000

H'0C00 0000

H'1000 0000

H'1400 0000

H'1800 0000

H'1C00 0000

H'1FFF FFFF

Area 0

Area 1

Area 2

Area 3

Area 4

Area 5

Area 6

Area 7 (reserved area)

Figure 3.5 External Memory Space

Rev.4.00 Oct. 10, 2008 Page 74 of 1122

REJ09B0370-0400

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