Renesas H8/3847R Series Hardware Manual page 6

Notes: The following limitations apply when using the on-chip emulator for program
development and debugging.
1. Pin P24 is reserved for use exclusively by the on-chip emulator and cannot be used for
other operations.
2. Pins P25, P26, and P27 cannot be used. In order to use these pins it is necessary to
install additional hardware on the user board.
3. The address area from H'E000 to H'EFFF is used by the on-chip emulator and therefore
cannot be accessed by the user.
4. The address area from H'F300 to H'F6FF must not be accessed under any
circumstances.
5. When the on-chip emulator is used, pin P24 functions as an I/O pin, pins P25 and P26
function as input pins, and pin P27 functions as an output pin.
6. During a break, the watchdog timer continues to operate. Therefore, an internal reset is
generated if an overflow occurs during the break.
Related Material:
User's Manuals on the H8/3847:
Manual Title
H8/3847R Group, H8/3847S Group, H8/38347 Group, H8/38447 Group
Hardware Manual
H8/300L Series Programming Manual
User's manuals for development tools:
Manual Title
C/C++ Compiler, Assembler, Optimizing Linkage Editor User's Manual
H8S, H8/300 Series Simulator/Debugger User's Manual
High-Performance Embedded Workshop User's Manual
H8S, H8/300 Series High-Performance Embedded Workshop,
High-Performance Debugging Interface User's Manual
Rev. 6.00 Aug 04, 2006 page iv of xxxvi
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Document No.
This manual
REJ09B0214-0200
Document No.
REJ10B0161-0100
REJ10B0211-0200
ADE-702-201
ADE-702-231