Operation - Hitachi SH7032 Hardware Manual

Superh risc engine

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Note: Addresses in the figure are the lowest shadow addresses in on-chip RAM space.

Note: Addresses in the figure are the lowest shadow addresses in on-chip RAM space.

Operation

Accesses to addresses H'FFFE000–H'FFFFFFF (SH7032) or addresses H'FFFF000–H'FFFFFFF

(SH7034) are directed to the on-chip RAM. Memory area 7 (H'F000000–H'FFFFFFF) is divided

into shadows in 8 kbyte units for the SH7032 and 4-kbyte units for the SH7034. All shadow

accesses are on-chip RAM accesses. For more information on shadows, see section 8, Bus State

Controller (BSC).

Internal data bus (32 bits)

Internal data bus (32 bits)

Figure 18.1 Block Diagram of RAM

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