r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 117

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Notes: 1. This area is specified as the external address space by clearing the RAME bit in SYSCR to 0.
H'000000
H'FE8000
H'FEC000
H'FF0000
H'FFC000
H'FFC800
H'FFFA00
H'FFFF00
H'FFFF20
H'FFFFFF
2. This area is specified as the external address space when EXPE = 1 and the reserved area when EXPE = 0.
3. On-chip RAM is used for flash memory programming. The RAME bit in SYSCR should not be cleared to 0.
4. A reserved area should not be accessed.
5. Area from H'FEC000 to H'FEFFFF in the H8S/24568, H8S/24568R, and H8S/24548 Groups is reserved and
6. 64-Kbyte version (H8S/24569, H8S/24569R, and H8S/24549) is under development.
7. Data flash is in planning.
Figure 3.1 Memory Map in Each Operating Mode (ROM: 256-Kbyte Version):
H8S/24569, H8S/24569R, H8S/24568, H8S/24568R, H8S/24549, and H8S/24548
should not be accessed.
On-chip RAM/External address space/
RAM: 64 Kbytes*
O
n-chip RAM/External address space*
on-chip ROM disabled)
External address space
External address space
(Expanded mode with
Internal I/O registers
Internal I/O registers
Reserved area *
External address
Modes 1 and 2
Reserved area *
Reserved area *
space
6
/48 Kbytes
1
*
5
4
4
1
H'000000
H'040000
H'080000
H'F00000
H'F02000
H'FE8000
H'FEC000
H'FF0000
H'FFC000
H'FFC800
H'FFFA00
H'FFFF00
H'FFFF20
H'FFFFFF
RAM: 64 Kbytes*
On-chip RAM/Reserved area
Data flash area 8 Kbytes *
External address space/
External address space/
External address space/
External address space/
Rev. 1.00 Sep. 19, 2008 Page 87 of 1342
Internal I/O registers
Internal I/O registers
Reserved area *
Reserved area *
ROM: 256 Kbytes
Reserved area *
Reserved area *
Reserved area *
Reserved area *
Reserved area *
On-chip RAM*
(Boot mode)
On-chip ROM
Mode 3
Section 3 MCU Operating Modes
6
/48 Kbytes
2
2
2
2
4
3
*
*
4
*
*
4
4
4
4
4
*
3
*
7
5
REJ09B0467-0100