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NRF52820-QDAA-R Datasheet(PDF) 63 Page - Nordic Semiconductor

Part # NRF52820-QDAA-R
Description  nRF52820
PDF  437 Pages
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Manufacturer  NORDIC [Nordic Semiconductor]
Direct Link  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF52820-QDAA-R Datasheet(HTML) 63 Page - Nordic Semiconductor

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Power and clock management
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID
I
G
E
D C B A
Reset 0x00000000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ID
Access
Field
Value ID
Value
Description
A
RW RESETPIN
Reset from pin-reset detected
NotDetected
0
Not detected
Detected
1
Detected
B
RW DOG
Reset from watchdog detected
NotDetected
0
Not detected
Detected
1
Detected
C
RW SREQ
Reset from soft reset detected
NotDetected
0
Not detected
Detected
1
Detected
D
RW LOCKUP
Reset from CPU lock-up detected
NotDetected
0
Not detected
Detected
1
Detected
E
RW OFF
Reset due to wake up from System OFF mode when wakeup
is triggered from DETECT signal from GPIO
NotDetected
0
Not detected
Detected
1
Detected
G
RW DIF
Reset due to wake up from System OFF mode when wakeup
is triggered from entering into debug interface mode
NotDetected
0
Not detected
Detected
1
Detected
I
RW VBUS
Reset due to wake up from System OFF mode by VBUS rising
into valid range
NotDetected
0
Not detected
Detected
1
Detected
5.3.7.12 RAMSTATUS ( Deprecated )
Address offset: 0x428
RAM status register
Since this register is deprecated the following substitutions have been made: RAM block 0 is equivalent to
a block comprising RAM0.S0 and RAM1.S0, RAM block 1 is equivalent to a block comprising RAM2.S0 and
RAM3.S0. A RAM block field will indicate ON as long as any of the RAM sections associated with a block
are on.
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID
B A
Reset 0x00000000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ID
Access
Field
Value ID
Value
Description
A-B R
RAMBLOCK[i] (i=0..1)
RAM block i is on or off/powering up
Off
0
Off
On
1
On
5.3.7.13 USBREGSTATUS
Address offset: 0x438
USB supply status
4463_156 v1.0
63



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