Datasheet

Section 3 MCU Operating Modes
Rev. 6.00 Mar. 18, 2010 Page 110 of 982
REJ09B0054-0600
Modes 4 and 5
(advanced extended modes
with on-chip ROM disabled)
Mode 6
(advanced extended mode
with on-chip ROM enabled)
Mode 7
(advanced single-chip mode)
External address
space
Note: * Extermal addresses can be accessed by clearing the RAME bit in SYSCR to 0.
External address
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External address
space
On-chip RAM
*
Internal I/O registers
Reserved
*
On-chip RAM
*
External address
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External address
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On-chip ROM
On-chip RAM*
Internal I/O registers
Reserved*
External address
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Reserved
On-chip RAM*
On-chip ROM
On-chip RAM
Internal I/O registersInternal I/O registersInternal I/O registers
Internal I/O registers
On-chip RAM
H'000000
H'FFB000
H'FFEFC0
H'040000
H'020000
H'000000
H'01FFFF
H'000000
H'FFD000H'FFD000H'FFD000
H'FFEFBF
H'FFFF40
H'FFFF60
H'FFFFC0
H'FFFFFF
H'FFF800
H'FFB000
H'FFEFC0
H'FFFF40
H'FFFF60 H'FFFF60
H'FFFFC0
H'FFFFFF
H'FFF800
H'FFFF3F
H'FFFFFF
H'FFF800
H'FFFFC0
Figure 3.2 H8S/2256 Memory Map in Each Operating Mode