Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet
Product codes
ATSAMD21-XPRO
119
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
15.8.2 Sleep Mode
Name:
SLEEP
Offset:
0x01
Reset:
0x00
Property:
Write-Protected
z
Bits 7:2 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
z
Bits 1:0 – IDLE[1:0]: Idle Mode Configuration
These bits select the Idle mode configuration after a WFI instruction.
These bits select the Idle mode configuration after a WFI instruction.
Table 15-6. Idle Mode Configuration
Bit
7
6
5
4
3
2
1
0
IDLE[1:0]
Access
R
R
R
R
R
R
R/W
R/W
Reset
0
0
0
0
0
0
0
0
IDLE[1:0]
Name
Description
0x0
CPU
The CPU clock domain is stopped
0x1
AHB
The CPU and AHB clock domains are stopped
0x2
APB
The CPU, AHB and APB clock domains are stopped
0x3
Reserved