Fujitsu FR81S User Manual
CHAPTER 47: ON CHIP DEBUGER (OCD)
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: ON CHIP DEBUGGER : OCD
FUJITSU SEMICONDUCTOR CONFIDENTIAL
19
5.1.1. Operating Mode
Operating mode is shown.
The OCDU operating mode includes emulator mode and free-run mode.
Emulator mode (debug running status)
The emulator mode consists of the debug state for executing the debug instruction and the user state for
executing a user program. If the RETI instruction is executed in the debug state, control transits to the user
state. If a break occurs in the user state, control transits to the debug state.
Free-run mode (normal running status)
Mode in which only the user program runs
MB91520 Series
MN705-00010-1v0-E
2030