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Idle
General Form
IDLE
Syntax
IDLE ;
/* (a) */
Instruction Length
In the syntax, comment (a) identifies 16-bit instruction length.
Functional Description
Typically, the Idle instruction is part of a sequence to place the Blackfin
processor in a quiescent state so that the external system can switch
between core clock frequencies.
The
instruction requests an idle state by setting the
IDLE
register. Setting the
SEQSTAT
processor in a quiescent state. If you intend to place the processor in Idle
mode, the
IDLE
instruction.
The first instruction following the
when the processor recovers from Idle mode.
The Idle instruction is the only way to set the
The architecture does not support explicit writes to
Flags Affected
None
ADSP-BF53x/BF56x Blackfin Processor Programming Reference
idle_req
instruction must immediately precede an
External Event Management
bit precedes placing the Blackfin
is the first instruction to execute
SSYNC
idle_req
SEQSTAT
bit in
idle_req
SSYNC
bit in
.
SEQSTAT
.
16-3
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