UPD78F9234MC-5A4-A Datasheet, PDF (335/419 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 20 ON-CHIP DEBUG FUNCTION
20.2 Securing of user resources
The user must prepare the following to perform communication between QB-MINI2 and the target device and
implement each debug function. For details of the setting, refer to QB-MINI2 User’s Manual (U18371E).
• Securement of memory space
The shaded portions in Figure 20-6 are the areas reserved for placing the debug monitor program, so user
programs cannot be allocated in these spaces.
Figure 20-6. Memory Spaces Where Debug Monitor Programs Are Allocated
Internal ROM space
304 bytes
Internal ROM
end address
Internal RAM space
Stack area for debugging
(5 bytes)
Internal RAM
end address
for software break (2 bytes)
0x7EH
INTP3 interrupt vector (2 bytes) 0x18H
• Securement of serial interface for communication
The register settings, concerning the INTP3 pin used for communication between QB-MINI2 and the target
device, performed by the debug monitor program must not be changed.
User’s Manual U17446EJ5V0UD
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