p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 102

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 3 MCU Operating Modes
3.5
Figures 3.1 and 3.2 show the address map in each operating mode.
Rev. 1.00 Sep. 21, 2006 Page 64 of 658
REJ09B0310-0100
Note: * This area is specified as the external address space by clearing the RAME bit in SYSCR to 0.
H'FEFFFF
H'FF0000
H'FFD07F
H'FFD080
H'FFEFFF
H'FFF000
H'FFF7FF
H'FFF800
H'FFFEFF
H'FFFF00
H'FFFF7F
H'FFFF80
H'FFFFFF
H'000000
Address Map
Mode 1
On-chip ROM disabled
extended mode
(Advanced mode)
address space
Reserved area
On-chip RAM*
address space
On-chip RAM
Internal I/O
Internal I/O
8064 bytes
register 2
128 bytes*
register 1
External
External
Figure 3.1 Address Map (1)
H'FFEFFF
H'FFF000
H'FFF7FF
H'FFF800
H'FFD07F
H'FFD080
H'FFFEFF
H'FFFF00
H'FFFF7F
H'FFFF80
H'FFFFFF
H'07FFFF
H'080000
H'0FFFFF
H'100000
H'FEFFFF
H'FF0000
H'000000
Mode 2 (EXPE = 1)
On-chip ROM enabled
extended mode
(Advanced mode)
Reserved area
address space
Reserved area
On-chip RAM*
address space
On-chip ROM
On-chip RAM
Internal I/O
Internal I/O
512 Kbytes
8064 bytes
register 2
128 bytes*
register 1
External
External
H'FFF800
H'FFFFFF
H'FFD080
H'FFEFFF
H'FFFEFF
H'FFFF00
H'FFFF7F
H'FFFF80
H'07FFFF
H'080000
H'0FFFFF
H'000000
Mode 2 (EXPE = 0)
Single-chip mode
(Advanced mode)
Reserved area
On-chip ROM
On-chip RAM
On-chip RAM
Internal I/O
Internal I/O
512 Kbytes
8064 bytes
register 2
128 bytes*
register 1