SAM3SD8B Atmel Corporation, SAM3SD8B Datasheet - Page 294

• Manufacturer Part Number: SAM3SD8B
• Manufacturer: Atmel Corporation

16.5.8
Name:
Address:
Access:
Note:
• 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.
• SMOS: Supply Monitor Output Status
0 (HIGH) = the supply monitor detected VDDIO higher than its threshold at its last measurement.
1 (LOW) = the supply monitor detected VDDIO lower than its threshold at its last measurement.
294
294
WKUPIS15
WKUPIS7
OSCSEL
31
23
15
–
7
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.
SAM3S8/SD8
SAM3S8/SD8
Supply Controller Status Register
SUPC_SR
0x400E1424
Read-write
WKUPIS14
LPDBCS1
WKUPIS6
SMOS
30
22
14
6
WKUPIS13
WKUPIS5
LPDBCS0
SMS
29
21
13
5
WKUPIS12
WKUPIS4
SMRSTS
28
20
12
–
4
WKUPIS11
BODRSTS
WKUPIS3
27
19
11
–
3
WKUPIS10
WKUPIS2
SMWS
26
18
10
–
2
WKUPIS9
WKUPIS1
WKUPS
25
17
9
–
1
11090A–ATARM–10-Feb-12
11090A–ATARM–10-Feb-12
WKUPIS8
WKUPIS0
24
16
8
–
0
–