Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Data Sheet
Product codes
ATSAMD20-XPRO
320
Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
22.8.3 User Multiplexer
This register is used to configure a specified event user. To write to this register, do a single 16-bit write of all the
configuration and event user selection data.
configuration and event user selection data.
To read from this register, first do an 8-bit write to the USER.USER bit group specifying the event user configuration to be
read, and then read USER.
read, and then read USER.
Name:
USER
Offset:
0x08
Reset:
0x0000
Property:
Write-protected
z
Bits 15:8 – CHANNEL: Channel Event Selection
These bits are used to select the channel to connect to the event user.
These bits are used to select the channel to connect to the event user.
Note that to select channel n, the value (n+1) must be written to the USER.CHANNEL bit group.
z
Bits 7:0 – USER: User Multiplexer Selection
These bits select the event user to be configured with a channel, or the event user to read the channel value from.
These bits select the event user to be configured with a channel, or the event user to read the channel value from.
Bit
15
14
13
12
11
10
9
8
CHANNEL[7:0]
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
USER[7:0]
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Table 22-5. Channel Event Selection
Value
Channel Number
0x00
No channel output selected
0x01
0
0x02
1
0x03
2
0x04
3
0x05
4
0x06
5
0x07
6
0x08
7
0x09-0xFF
Reserved