Datasheet

SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
284
16.5.6 Supply Controller Wake Up Mode Register
Name: SUPC_WUMR
Address: 0x400E1A1C
Access: Read-write
• FWUPEN: Force Wake Up Enable
0 (NOT_ENABLE) = the Force Wake Up pin has no wake up effect.
1 (ENABLE) = the Force Wake Up pin low forces the wake up of the core power supply.
• SMEN: Supply Monitor Wake Up Enable
0 (NOT_ENABLE) = the supply monitor detection has no wake up effect.
1 (ENABLE) = the supply monitor detection forces the wake up of the core power supply.
• RTTEN: Real Time Timer Wake Up Enable
0 (NOT_ENABLE) = the RTT alarm signal has no wake up effect.
1 (ENABLE) = the RTT alarm signal forces the wake up of the core power supply.
• RTCEN: Real Time Clock Wake Up Enable
0 (NOT_ENABLE) = the RTC alarm signal has no wake up effect.
1 (ENABLE) = the RTC alarm signal forces the wake up of the core power supply.
• FWUPDBC: Force Wake Up Debouncer Period
31 30 29 28 27 26 25 24
––––––––
23 22 21 20 19 18 17 16
––––––––
15 14 13 12 11 10 9 8
– WKUPDBC – FWUPDBC
76543210
––––RTCENRTTENSMENFWUPEN
Value Name Description
0 IMMEDIATE Immediate, no debouncing, detected active at least on one Slow Clock edge.
1 3_SCLK FWUP shall be low for at least 3 SLCK periods
2 32_SCLK FWUP shall be low for at least 32 SLCK periods
3 512_SCLK FWUP shall be low for at least 512 SLCK periods
4 4096_SCLK FWUP shall be low for at least 4,096 SLCK periods
5 32768_SCLK FWUP shall be low for at least 32,768 SLCK periods
6 Reserved Reserved
7 Reserved Reserved