Datasheet

389
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
19.5.8 Supply Controller Status Register
Name: SUPC_SR
Address: 0x400E1824
Access: Read-only
Note: Because of the asynchronism between the Slow Clock (SCLK) and the System Clock (MCK), the status register flag reset is taken
into account only 2 slow clock cycles after the read of the SUPC_SR.
This register is located in the VDDIO domain.
 FWUPS: FWUP Wake-up Status
0 (NO): No wake-up due to the assertion of the FWUP pin has occurred since the last read of SUPC_SR.
1 (PRESENT): At least one wake-up due to the assertion of the FWUP pin has occurred since the last read of SUPC_SR.
 WKUPS: WKUP Wake-up Status
0 (NO): No wake-up due to the assertion of the WKUP pins has occurred since the last read of SUPC_SR.
1 (PRESENT): At least one wake-up due to the assertion of the WKUP pins has occurred since the last read of SUPC_SR.
 SMWS: Supply Monitor Detection Wake-up Status
0 (NO): No wake-up due to a supply monitor detection has occurred since the last read of SUPC_SR.
1 (PRESENT): At least one wake-up due to a supply monitor detection has occurred since the last read of SUPC_SR.
 BODRSTS: Brownout Detector Reset Status
0 (NO): No core brownout rising edge event has been detected since the last read of the SUPC_SR.
1 (PRESENT): At least one brownout output rising edge event has been detected since the last read of the SUPC_SR.
When the voltage remains below the defined threshold, there is no rising edge event at the output of the brownout detec-
tion cell. The rising edge event occurs only when there is a voltage transition below the threshold.
 SMRSTS: Supply Monitor Reset Status
0 (NO): No supply monitor detection has generated a core reset since the last read of the SUPC_SR.
1 (PRESENT): At least one supply monitor detection has generated a core reset since the last read of the SUPC_SR.
 SMS: Supply Monitor Status
0 (NO): No supply monitor detection since the last read of SUPC_SR.
1 (PRESENT): At least one supply monitor detection since the last read of SUPC_SR.
31 30 29 28 27 26 25 24
WKUPIS15 WKUPIS14 WKUPIS13 WKUPIS12 WKUPIS11 WKUPIS10 WKUPIS9 WKUPIS8
23 22 21 20 19 18 17 16
WKUPIS7 WKUPIS6 WKUPIS5 WKUPIS4 WKUPIS3 WKUPIS2 WKUPIS1 WKUPIS0
15 14 13 12 11 10 9 8
–LPDBCS1LPDBCS0FWUPIS––––
76543210
OSCSEL SMOS SMS SMRSTS BODRSTS SMWS WKUPS FWUPS