Hitachi H8S/2633 Hardware Manual page 103

Modes 4 and 5
(advanced expanded modes
with on-chip ROM disabled)
H'000000
External address
space
H'FFB000
On-chip RAM*
H'FFEFC0
External area
H'FFF800
Internal I/O registers*
H'FFFF40
External area
H'FFFF60
Internal I/O registers
H'FFFFC0
On-chip RAM*
H'FFFFFF
Notes:
1. External addresses can be accessed by clearing th RAME bit in SYSCR to 0.
2. Area H'FFF800 to H'FFFDAB is reserved, and must not be accessed.
Figure 3-1 Memory Map in Each Operating Mode in the H8S/2633
76
(advanced expanded mode
with on-chip ROM enabled)
H'000000
H'040000
External address
H'FFB000
1
On-chip RAM*
H'FFEFC0
H'FFF800
2
Internal I/O registers*
H'FFFF40
H'FFFF60
Internal I/O registers
H'FFFFC0
1
On-chip RAM*
H'FFFFFF
Mode 6
H'000000
On-chip ROM
H'03FFFF
space
H'FFB000
1
H'FFEFBF
External area
H'FFF800
2
H'FFFF3F
External area
H'FFFF60
H'FFFFC0
1
H'FFFFFF
Mode 7
(advanced single-chip mode)
On-chip ROM
On-chip RAM
Internal I/O registers*
Internal I/O registers
On-chip RAM
2