AT91M40400-25C ATMEL Corporation, AT91M40400-25C Datasheet - Page 39

• Manufacturer Part Number: AT91M40400-25C
• Description: 16/32-bit Microcontroller, 2.7V to 3.6V Operating Range
• Manufacturer: ATMEL Corporation

AIC Source Mode Register
Register Name:
Access Type:
Reset Value:
•
•
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
1
1
31
23
15
---
---
---
---
7
0
1
0
1
Internal Sources
Level Sensitive
Edge Triggered
Level Sensitive
Edge Triggered
30
22
14
AIC_SMR0 - AIC_SMR31
Read/Write
0
---
---
---
6
SRCTYPE
29
21
13
---
---
---
5
External Sources
Low Level Sensitive
Negative Edge Triggered
High Level Sensitive
Positive Edge Triggered
28
20
12
---
---
---
---
4
27
19
11
---
---
---
---
3
26
18
10
---
---
---
2
AT91M40400
PRIOR
25
17
---
---
---
9
1
24
16
---
---
---
8
0
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