Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Scheda Tecnica
Codici prodotto
ATSAMD20-XPRO
126
Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
15.8.13 Interrupt Flag Status and Clear
Name:
INTFLAG
Offset:
0x36
Reset:
0x00
Property:
–
z
Bits 7:2 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
z
Bit 1 – CFD: Clock Failure Detector
This flag is cleared by writing a one to the flag.
This flag is cleared by writing a one to the flag.
This flag is set on the next cycle after a clock failure detector occurs and will generate an interrupt request if
INTENCLR/SET.CFD is one.
INTENCLR/SET.CFD is one.
Writing a zero to this bit has no effect.
Writing a one to this bit clears the Clock Failure Detector Interrupt flag.
z
Bit 0 – CKRDY: Clock Ready
This flag is cleared by writing a one to the flag.
This flag is cleared by writing a one to the flag.
This flag is set when the synchronous CPU and APBx clocks have frequencies as indicated in the CPUSEL and
APBxSEL registers, and will generate an interrupt if INTENCLR/SET.CKRDY is one.
APBxSEL registers, and will generate an interrupt if INTENCLR/SET.CKRDY is one.
Writing a zero to this bit has no effect.
Writing a one to this bit clears the Clock Ready Interrupt flag.
Bit
7
6
5
4
3
2
1
0
CFD
CKRDY
Access
R
R
R
R
R
R
R/W
R/W
Reset
0
0
0
0
0
0
0
0