AT91M40400 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT91M40400' PDF : 116 Pages View PDF
AT91M40400
AIC Source Mode Register
Register Name:
Access Type:
Reset Value:
AIC_SMR0 - AIC_SMR31
Read/Write
0
31
30
29
28
27
26
25
24
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---
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23
22
21
20
19
18
17
16
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---
---
---
---
---
---
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15
14
13
12
11
10
9
8
---
---
---
---
---
---
---
---
7
6
5
4
3
2
1
0
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SRCTYPE
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PRIOR
• PRIOR: Priority Level
Program the priority level for all sources except source 0 (FIQ).
The priority level can be between 0 (lowest) and 7 (highest).
The priority level is not used for the FIQ, in the SMR0.
• SRCTYPE: Interrupt Source Type
Program the input to be positive or negative edge triggered or positive or negative level sensitive.
The active level or edge is not programmable for the internal sources.
SRCTYPE
0
0
0
1
1
0
1
1
Internal Sources
Level Sensitive
Edge Triggered
Level Sensitive
Edge Triggered
External Sources
Low Level Sensitive
Negative Edge Triggered
High Level Sensitive
Positive Edge Triggered
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