Analog Devices Blackfin ADSP-BF537 Hardware Reference Manual page 1058

Dynamic Power Management Controller
STOPCK = 1 &
PDWN = 0
Active
PDWN = 1
FREQ = 00
Hibernate
CAN Activity &
CANWE = 1
Figure 20-2. Operating Mode Transitions
20-12
Sleep
Wakeup &
BYPASS = 1
BYPASS = 0 & PLL_OFF = 0 &
STOPCK = 0 & PDWN = 0
RTC_WAKEUP
WAKE = 1 &
RTC_WAKEUP
WAKE = 1 &
HARDWARE RESET
PHY Activity &
PHYWE = 1
ADSP-BF537 Blackfin Processor Hardware Reference
Wakeup &
BYPASS = 0
BYPASS = 1 & STOPCK = 0 &
PDWN = 0
HARDWARE
RESET
Reset
STOPCK = 1 &
PDWN = 0
Full On
PDWN = 1
FREQ = 00