Motorola ColdFire MCF5281 User Manual

Page 662

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Debug Support

30-44

Freescale Semiconductor

The move-to-SR, STLDSR, and RTE instructions include an optional PST = 0x3 value, indicating an entry
into user mode. Additionally, if the execution of a RTE instruction returns the processor to emulator mode,
a multiple-cycle status of 0xD is signaled.

Similar to the exception processing mode, the stopped state (PST = 0xE) and the halted state (PST = 0xF)
display this status throughout the entire time the ColdFire processor is in the given mode.

rte

PST = 0x7, {PST = 0xB, DD = source operand}, {PST = 3}, { PST =0xB,
DD =source operand},
PST = 0x5, {[PST = 0x9AB], DD = target address}

stldsr.w

#imm

PST = 0x1, {PST = 0xA, DD = destination operand, PST = 0x3}

stop

#imm

PST = 0x1,
PST = 0xE

wdebug

<ea>y

PST = 0x1, {PST = 0xB, DD = source, PST = 0xB, DD = source}

Table 30-24. PST/DDATA Specification for Supervisor-Mode Instructions

Instruction

Operand Syntax

PST/DDATA

MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3

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