HD64F2145 datasheet(111/829 Pages) RENESAS

111 / 829 page

Rev. 2.0, 08/02, page 71 of 788

3.4

Address Map in Each Operating Mode

Figures 3.1 to 3.10 show the address map in each operating mode.

Note: These areas can be used as an external address space by clearing bit RAME in SYSCR to 0.

Mode 2 (EXPE = 0)

Advanced mode

Single-chip mode

H'01FFFF

H'020000

H'000000

On-chip ROM

External address

space

On-chip ROM

Mode 2 (EXPE = 1)

Advanced mode

Extended mode with

on-chip ROM enabled

Internal I/O

registers 2

On-chip RAM

Internal I/O

registers 1

On-chip RAM

(128 bytes)

Internal I/O

registers 2

On-chip RAM*

Internal I/O

registers 1

H'FFE080

H'FFFEFF

H'FFFFFF

H'FFFE50

H'FFFF7F

H'FFFF80

H'FFFF00

On-chip RAM

(128 bytes)*

External address

space

Internal I/O

registers 3

Internal I/O

registers 3

H'FFF800

H'FFFE4F

H'FFF7FF

H'FFEFFF

H'FFF000

Reserved area

H'0000

External address

space

Mode 1

Normal mode

Extended mode with

on-chip ROM disabled

Internal I/O

registers 2

On-chip RAM*

Internal I/O

registers 1

H'E080

H'FEFF

H'FFFF

H'FE50

H'FF7F

H'FF80

H'FF00

On-chip RAM

(128 bytes)*

External address

space

Internal I/O

registers 3

H'F800

H'FE4F

H'F7FF

H'EFFF

H'F000

H'00FFFF

H'01FFFF

H'000000

H'FFE080

H'FFFEFF

H'FFFFFF

H'FFFE50

H'FFFF7F

H'FFFF80

H'FFFF00

H'FFF800

H'FFFE4F

H'FFEFFF

H'00FFFF

Figure 3.1 Address Map for H8S/2140B and H8S/2160B (1)

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