Техническая Спецификация для Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO

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Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
22.8.4 Channel Status
Name:
CHSTATUS
Offset:
0x0C
Reset:
0x000000FF
Property:
z
Bits 31:16 – 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.
z
Bits  15:8 – CHBUSYx: Channel Busy x
This bit is cleared when channel x is idle
This bit is set if an event on channel x has not been handled by all event users connected to channel x.
z
Bits  7:0 – USRRDYx: User Ready for Channel x
This bit is cleared when at least one of the event users connected to the channel is not ready.
This bit is set when all event users connected to channel x are ready to handle incoming events on channel x.
Bit
31
30
29
28
27
26
25
24
Access
R
R
R
R
R
R
R
R
Reset
0
0
0
0
0
0
0
0
Bit
23
22
21
20
19
18
17
16
Access
R
R
R
R
R
R
R
R
Reset
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
CHBUSY7
CHBUSY6
CHBUSY5
CHBUSY4
CHBUSY3
CHBUSY2
CHBUSY1
CHBUSY0
Access
R
R
R
R
R
R
R
R
Reset
0
0
0
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
USRRDY7
USRRDY6
USRRDY5
USRRDY4
USRRDY3
USRRDY2
USRRDY1
USRRDY0
Access
R
R
R
R
R
R
R
R
Reset
0
0
0
0
0
0
0
0