upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 778

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

22.6 Restrictions and Cautions on On-Chip Debug Function
Caution:
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• Do not mount a device that was used for debugging on a mass-produced product (this is
• If a reset signal (reset input from the target system or reset by an internal reset source) is input
• Even if reset is masked by using a mask function, the I/O buffer (port pin, etc.) is reset when a
• With a debugger that can set software breakpoints in the internal flash memory, the breakpoints
• The RESET signal input is masked during a break.
• The POC reset operation cannot be emulated.
• Pin reset must be input to execute on-chip debugging, because the OCDM0 bit of the OCDM
• For details, refer to 22.3 (1)”On-chip debug mode register (OCDM)” on page 771.
When break command is based, and application software accesses for UARTA/CSIB/AFCAN
peripheral I/O register, to restart without reset, CSIB and AFCAN that may be not correct
operation.
because the flash memory was rewritten during debugging and the number of rewrites of the
flash memory cannot be guaranteed).
during RUN (program execution), the break function may malfunction.
pin reset signal is input.
temporarily become invalid when pin reset or internal reset is effected. The breakpoints become
valid again if a break such as a hardware break or forced break is executed. Until then, no
software break occurs.
register must be set to 1.
Caution for useful
Chapter 22 On-Chip Debug Function
User’s Manual U16702EE3V2UD00