HD64F2149 Datasheet, PDF (118/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

Mode 1
(normal expanded mode
with on-chip ROM disabled)
Mode 3/EXPE = 1
(normal expanded mode
with on-chip ROM enabled)
Mode 3/EXPE = 0
(normal single-chip mode)
H'0000
H'0000
H'0000
External address
space
On-chip ROM
On-chip ROM
H'E080
H'E880
Reserved area*
On-chip RAM*
H'EFFF
H'F000 External address
H'F7FF
space
H'F800
H'FE4F
Internal I/O registers 3
H'FE50
H'FEFF
Internal I/O registers 2
H'FF00
On-chip RAM
H'FF7F
(128 bytes)*
H'FF80
H'FFFF
Internal I/O registers 1
H'DFFF
H'E080
H'E880
External address
space
Reserved area*
On-chip RAM*
H'EFFF
H'F000
H'F7FF
H'F800
H'FE4F
H'FE50
H'FEFF
H'FF00
H'FF7F
H'FF80
H'FFFF
External address
space
Internal I/O registers 3
Internal I/O registers 2
On-chip RAM
(128 bytes)*
Internal I/O registers 1
H'DFFF
H'E080
H'E880
H'EFFF
Reserved area
On-chip RAM
H'F800
H'FE4F
Internal I/O registers 3
H'FE50
H'FEFF
Internal I/O registers 2
H'FF00
On-chip RAM
H'FF7F
(128 bytes)
H'FF80
H'FFFF
Internal I/O registers 1
Note: * External addresses can be accessed by clearing the RAME bit in SYSCR to 0.
Figure 3.1 H8S/2169 or H8S/2149 Memory Map in Each Operating Mode
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