ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 302

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

19.4.8
Name:
Address:
Access:
Note:
• 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.
302
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.
SAM3U Series
Supply Controller Status Register
WKUPIS14
WKUPIS6
SMOS
30
22
14
0x400E1224
–
6
SUPC_SR
Read-write
WKUPIS13
WKUPIS5
SMS
29
21
13
–
5
WKUPIS12
WKUPIS4
SMRSTS
FWUPIS
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
6430D–ATARM–25-Mar-11
WKUPIS8
WKUPIS0
FWUPS
24
16
8
–
0