45
H'000000
H'FFA000
H'FFC000
H'000000
H'FFA000
H'FFC000
H'FFFC00
External
address space
On-chip RAM/external
address space
*
1
External
address space
External address space
Internal I/O registers
External address space
Internal I/O registers
On-chip ROM
On-chip RAM/external
address space
*
3
External address
space/reserved area
*
2
External address
space/reserved area
*
2
Internal I/O registers
Internal I/O registers
H'FFFFFF
H'FFFC00
H'FFFF00
H'FFFF20
H'FFFFFF
H'FFFF00
H'FFFF20
H'040000
H'100000
H'140000
External address
space/reserved area
*
2
On-chip ROM
Modes 5 and 6
(external ROM activation
expanded modes
with on-chip ROM enabled)
Mode 7
(single-chip activation
expanded mode
with on-chip ROM enabled)
Notes: 1. External addresses can be accessed by clearing the RAME bit in SYSCR to 0.
2. When EXPE = 1, external address space; when EXPE = 0, reserved area.
3. When EXPE = 1, external address space when RAME = 0, on-chip RAM when RAME = 1.
When EXPE = 0, on-chip RAM area.
Figure 2.6 H8S/2676 Memory Map in Each Operating Mode (2)
Summary of Contents for H8S/2670
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