HD6432351 Datasheet, PDF (96/989 Pages) Renesas Technology Corp – The H8S/2000 CPU has an internal 32-bit architecture, is provided with sixteen 16-bit general registers and a concise

Mode 1
(normal expanded mode
with on-chip ROM disabled)
Mode 2^*1
(normal expanded mode
with on-chip ROM enabled)
Mode 3^*1
(normal single-chip mode)
H'0000
H'0000
H'0000
External address
space
On-chip ROM
On-chip ROM
H'F400 _{On-chip RAM*2}
H'FC00 External address
space
H'FE40 _{Internal I/O registers}
H'FF08 External address
space
H'FF28 _{Internal I/O registers}
H'FFFF
H'E000
External address
space
H'F400 _{On-chip RAM*2}
H'FC00 External address
space
H'FE40 _{Internal I/O registers}
H'FF08 External address
space
H'FF28
H'FFFF
Internal I/O registers
H'DFFF
H'F400
H'FBFF ^{On-chip RAM}
H'FE40 _{Internal I/O registers}
H'FF07
H'FF28
H'FFFF
Internal I/O registers
Notes: 1. Modes 2 and 3 only apply to the H8S/2351.
2. External addresses can be accessed by clearing the RAME bit in SYSCR to 0.
Figure 3-1 Memory Map in Each Operating Mode
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