Pll Programming Sequence Continues - Analog Devices Blackfin ADSP-BF537 Hardware Reference Manual

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When the wakeup signal has been asserted, the instruction

sequence continues with the

Programming Sequence" on page

transition to:

—Active mode if

—Full on mode if the

mode, the processor immediately transitions to deep sleep mode

and waits for an RTC interrupt or hardware reset signal:

—An RTC interrupt causes the processor to enter active

operating mode and continue with the

the sequence, as described below.

—A hardware reset causes the processor to execute the reset

sequence. For more information about hardware reset, see

the ADSP-BF53x/BF56x Blackfin Processor Programming

• If no operating mode transition is programmed, the PLL generates

a wakeup signal, and the processor continues with the

tion in the sequence, as described in the following section.

PLL Programming Sequence Continues

The instruction sequence shown in

continues with the

restored, and normal program flow resumes.

To prevent spurious activity, DMA should be suspended while exe-

cuting this instruction sequence.

ADSP-BF537 Blackfin Processor Hardware Reference

Dynamic Power Management

Listing 20-1

instruction. Interrupts are re-enabled,

instruction, as described in

20-15, causing the processor to

bit is cleared

instruction in

Listing 20-2