at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 117
at91sam9g20-cu
Manufacturer Part Number
at91sam9g20-cu
Description
At91 Arm Thumb Microcontrollers
Manufacturer
ATMEL Corporation
Datasheet
1.AT91SAM9G20-CU.pdf
(814 pages)
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18. Shutdown Controller (SHDWC)
18.1
18.2
Figure 18-1. Shutdown Controller Block Diagram
18.3
Table 18-1.
18.4
18.4.1
6384B–ATARM–15-Dec-08
Name
WKUP0
SHDN
WKUP0
RTT Alarm
Overview
Block Diagram
I/O Lines Description
Product Dependencies
Power Management
I/O Lines Description
SHDW_MR
WKMODE0
CPTWK0
Shutdown Controller
RTTWKEN
The Shutdown Controller controls the power supplies VDDIO and VDDCORE and the wake-up
detection on debounced input lines.
The Shutdown Controller is continuously clocked by Slow Clock. The Power Management Con-
troller has no effect on the behavior of the Shutdown Controller.
Description
Wake-up 0 input
Shutdown output
SHDW_MR
read SHDW_SR
reset
WAKEUP0
reset
read SHDW_SR
RTTWK
set
set
SHDW_SR
SHDW_SR
AT91SAM9G20 Preliminary
SHDW_CR
SLCK
SHDW
Wake-up
Shutdown
Shutdown
Controller
Output
Type
Input
Output
SHDN
117
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