Texas Instruments TMS320C28x Reference Manual page 250

ESTOP0
SYNTAX OPTIONS
ESTOP0
Operands
Description
Flags and
Modes
Repeat
0111 0110 0010 0101
None
Emulation Stop 0
This instruction is available for emulation purposes. It is used to create a
software breakpoint.
When an emulator is connected to the C28x and emulation is enabled, this
instruction causes the C28x to halt, regardless of the state of the DBGM bit in
status register ST1. In addition, ESTOP0 does not increment the PC.
When an emulator is not connected or when a debug program has disabled
emulation, the ESTOP0 instruction is treated the same way as a NOP
instruction. It simply advances the PC to the next instruction.
None
This instruction is not repeatable. If this instruction follows the RPT
instruction, it resets the repeat counter (RPTC) and executes only once.
OPCODE OBJMODE
ESTOP0
Emulation Stop 0
RPT CYC
X − 1
6-93