The 8 registers of OSC32KCTRL (32k Oscillators Control), from 0x40001000, with their reset value and every field. The ATSAML21J18B has 1323 registers in 42 peripherals, one page each.
OSC32KCTRL 32k Oscillators Control
INTENCLRInterrupt Enable Clear
Address
0x40001000
Reset
0x00000000
Access
read/write
Size
32-bit
2 fields
Field
Bits
What it does
OSC32KRDY
1
OSC32K Ready Interrupt Enable
XOSC32KRDY
0
XOSC32K Ready Interrupt Enable
INTENSETInterrupt Enable Set
Address
0x40001004
Reset
0x00000000
Access
read/write
Size
32-bit
2 fields
Field
Bits
What it does
OSC32KRDY
1
OSC32K Ready Interrupt Enable
XOSC32KRDY
0
XOSC32K Ready Interrupt Enable
INTFLAGInterrupt Flag Status and Clear
Address
0x40001008
Reset
0x00000000
Access
read/write
Size
32-bit
2 fields
Field
Bits
What it does
OSC32KRDY
1
OSC32K Ready
XOSC32KRDY
0
XOSC32K Ready
STATUSPower and Clocks Status
Address
0x4000100C
Reset
0x00000000
Access
read only
Size
32-bit
2 fields
Field
Bits
What it does
OSC32KRDY
1
OSC32K Ready
XOSC32KRDY
0
XOSC32K Ready
RTCCTRLClock selection
Address
0x40001010
Reset
0x00000000
Access
read/write
Size
32-bit
1 field
Field
Bits
What it does
RTCSEL
2:0
RTC Clock Selection
0 1.024kHz from 32kHz internal ULP oscillator
1 32.768kHz from 32kHz internal ULP oscillator
2 1.024kHz from 32.768kHz internal oscillator
3 32.768kHz from 32.768kHz internal oscillator
4 1.024kHz from 32.768kHz internal oscillator
5 32.768kHz from 32.768kHz external crystal oscillator
XOSC32K32kHz External Crystal Oscillator (XOSC32K) Control
Address
0x40001014
Reset
0x00000080
Access
read/write
Size
32-bit
8 fields
Field
Bits
What it does
WRTLOCK
12
Write Lock
STARTUP
10:8
Oscillator Start-Up Time
0 62.5 ms
1 125 ms
2 500 ms
3 1000 ms
4 2000 ms
5 4000 ms
6 8000 ms
ONDEMAND
7
On Demand Control
RUNSTDBY
6
Run in Standby
EN1K
4
1kHz Output Enable
EN32K
3
32kHz Output Enable
XTALEN
2
Crystal Oscillator Enable
ENABLE
1
Oscillator Enable
OSC32K32kHz Internal Oscillator (OSC32K) Control
Address
0x40001018
Reset
0x003F0080
Access
read/write
Size
32-bit
8 fields
Field
Bits
What it does
CALIB
22:16
Oscillator Calibration
WRTLOCK
12
Write Lock
STARTUP
10:8
Oscillator Start-Up Time
0 0.092 ms
1 0.122 ms
2 0.183 ms
3 0.305 ms
4 0.549 ms
5 1.038 ms
6 2.014 ms
7 3.967 ms
ONDEMAND
7
On Demand Control
RUNSTDBY
6
Run in Standby
EN1K
3
1kHz Output Enable
EN32K
2
32kHz Output Enable
ENABLE
1
Oscillator Enable
OSCULP32K32kHz Ultra Low Power Internal Oscillator (OSCULP32K) Control
BETA