at91cap7e ATMEL Corporation, at91cap7e Datasheet - Page 97

• Manufacturer Part Number: at91cap7e
• Description: Customizable Microcontroller
• Manufacturer: ATMEL Corporation

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
18.5
8549A–CAP–10/08
Name
WKUP0
SHDN
WKUP0
RTT Alarm
Description
Block Diagram
I/O Lines Description
Product Dependencies
Functional Description
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.
The Shutdown Controller manages the main power supply. To do so, it is supplied with VDDBU
and manages wake-up input pins and one output pin, SHDN.
Description
Wake-up 0 input
Shutdown output
SHDW_MR
reset
reset
set
read SYSC_SHSR
read SHDW_SR
WAKEUP0
RTTWK
set
SHDW_SR
SHDW_SR
SHDW_CR
SLCK
SHDW
Wake-up
Shutdown
Shutdown
Controller
Output
AT91CAP7E
Type
Input
Output
SHDN
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