Datasheet

83
SAM9X35 [DATASHEET]
11055E–ATARM–10-Mar-2014
13.10.2 AIC Source Mode Register
Name: AIC_SMR0..AIC_SMR31
Address: 0xFFFFF000
Access Read-write
Reset: 0x0
This register can only be written if the WPEN bit is cleared in AIC Write Protect Mode Register
• PRIOR: Priority Level
The priority level is programmable from 0 (lowest priority) to 7 (highest priority).
The priority level is not used for the FIQ in the related SMR register AIC_SMR0.
• SRCTYPE: Interrupt Source Type
The active level or edge is not programmable for the internal interrupt sources.
31 30 29 28 27 26 25 24
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23 22 21 20 19 18 17 16
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15 14 13 12 11 10 9 8
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76543210
– SRCTYPE – – PRIOR
Value Name Description
0x0 INT_LEVEL_SENSITIVE
High level Sensitive for internal source
Low level Sensitive for external source
0x1 INT_EDGE_TRIGGERED
Positive edge triggered for internal source
Negative edge triggered for external source
0x2 EXT_HIGH_LEVEL
High level Sensitive for internal source
High level Sensitive for external source
0x3 EXT_POSITIVE_EDGE
Positive edge triggered for internal source
Positive edge triggered for external source