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Section 4. H8S Function Supported
The CE2000-H8S/2238 emulator can support the H8S series of microcomputer. The various functions
support for the H8S are detailed below.
4.1
MCU Operating Mode Setting
The CE2000-H8S/2238 emulator supports the four operating modes of the H8S. User can select the MCU
operating mode via the Configure Platform dialog. The following table shows the MCU settings.
Operating mode
Mode 4
Mode 5
Mode 6
Mode 7
4.2
Memory Area
The H8S has a maximum memory area of 16 Mbytes. The four classification of memory are:
Internal ROM Area
4.2.1
The emulator has a substitute RAM for the H8S internal ROM. Access to this substitute RAM is as
follows:
•
Access arising from user program execution
•
HEW
Therefore, the user can modify the internal ROM area memory and load the object program.
Internal RAM Area
4.2.2
The emulator has a substitute RAM for the H8S internal RAM. When user tries to access the internal
RAM, this substitute RAM is always accessed instead. User can access the internal RAM area from the
user program or with an HEW.
Internal I/O Area
4.2.3
When the internal I/O area is accessed, the emulator accesses the internal I/O. User can read and write to
the internal I/O area from the user program or with HEW.
Table 4-1
MD2
MD1
MD0
1
0
0
1
0
1
1
1
0
1
1
1
MCU Operating Modes
Advanced expanded mode w/o internal
ROM (16 bits)
Advanced expanded mode w/o internal
ROM (8 bits)
Advanced expanded mode with internal
ROM
Advanced single chip mode
: Read only, write disabled
: R/W enabled
36
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