UPD78F1502AGK-GAK-AX Datasheet, PDF (819/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 23 POWER-ON-CLEAR CIRCUIT
Figure 23-3. Example of Software Processing After Reset Release (2/2)
• Checking reset source
Check reset source
TRAP of RESF
Yes
register = 1?
No
WDRF of RESF
register = 1?
Reset processing by
illegal instruction execution ^Note
Yes
No
LVIRF of RESF
register = 1?
Reset processing by
watchdog timer
Yes
No
Power-on-clear/external
reset generated
Reset processing by
low-voltage detector
Note
The illegal instruction is generated when instruction code FFH is executed.
Reset by the illegal instruction execution not issued by emulation with the in-circuit emulator or on-chip
debug emulator.
R01UH0004EJ0501 Rev.5.01
803
Jun 20, 2011