SAM9G25_14 Datasheet, PDF (161/1167 Pages) ATMEL Corporation – Atmel | SMART ARM-based Embedded Microprocessor

18. Shutdown Controller (SHDWC)
18.1
Description
The Shutdown Controller controls the power supplies VDDIO and VDDCORE and the wake-up detection on debounced
input lines.
18.2
Embedded Characteristics
 Shutdown and Wake-up Logic
 Software Assertion of the SHDW Output Pin
 Programmable De-assertion from the WKUP Input Pins
18.3 Block Diagram
Figure 18-1. Shutdown Controller Block Diagram
Shutdown Controller
SLCK
WKUP0
SHDW_MR
CPTWK0
WKMODE0
read SHDW_SR
reset
WAKEUP0 SHDW_SR
set
RTC Alarm
RTTWKEN ^SHDW_MR
read SHDW_SR
reset
RTCWK
set
SHDW_SR
SHDW_CR
SHDW
Wake-up
Shutdown
Output
Controller
Shutdown
SHDN
SAM9G25 [DATASHEET]
Atmel-11032E-ATARM-SAMG25-Datasheet_13-Oct-14
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