HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 148

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 3 MCU Operating Modes
Rev.7.00 Mar. 18, 2009 page 80 of 1136
REJ09B0109-0700
Notes: 1. This area is specified as the external address space by clearing the RAME bit in SYSCR to 0.
2. When EXPE = 1, external address space; when EXPE = 0, reserved area.
3. On-chip RAM is used for flash memory programming. Do not clear the RAME bit in SYSCR to 0.
4. A reserved area should not be accessed.
Figure 3.3 Memory Map for H8S/2377 and H8S/2377R (1)
H'FFFC00
H'FFFF00
H'FFFF20
H'FFFFFF
H'FF4000
H'FF6000
H'FFC000
H'FFC800
H'000000
on-chip ROM disabled)
(Expanded mode with
External address space
External address space
Internal I/O registers
Internal I/O registers
External address
RAM: 24 kbytes
external address
Reserved area *
Reserved area *
Modes 1 and 2
On-chip RAM/
space *
space
1
4
4
H'FFFC00
H'FF4000
H'FF6000
H'FFC000
H'FFC800
H'FFFF00
H'FFFF20
H'FFFFFF
H'000000
H'060000
External address space/
Internal I/O registers
Internal I/O registers
External address space/
Reserved area *
ROM: 384 kbytes
External address
RAM: 24 kbytes
reserved area
Reserved area *
Reserved area *
reserved area
On-chip ROM
On-chip RAM *
(Boot mode)
Mode 3
space/
*
*
2
2
*
*
2
4
4
*
4
3
4
4