ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 166
ATSAM3X4EA-AU
Manufacturer Part Number
ATSAM3X4EA-AU
Description
ARM Microcontrollers - MCU QFP144,GREEN, IND TEMP, MRL A
Manufacturer
Atmel
Datasheet
1.ATSAM3X8EA-AU.pdf
(1467 pages)
Specifications of ATSAM3X4EA-AU
Rohs
yes
Core
ARM Cortex M3
Processor Series
SAM3X
Data Bus Width
32 bit
Maximum Clock Frequency
84 MHz
Program Memory Size
256 KB
Data Ram Size
64 KB
On-chip Adc
Yes
Operating Supply Voltage
2.4 V to 3.6 V
Operating Temperature Range
- 40 C to +85 C
Package / Case
LQFP-144
Mounting Style
SMD/SMT
Factory Pack Quantity
60
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Find the IPR number and byte offset for interrupt N as follows:
12.20.8
• INTID
Interrupt ID of the required SGI, in the range 0-239. For example, a value of b000000011 specifies interrupt IRQ3.
166
166
• the corresponding IPR number, M, is given by M = N DIV 4
• the byte offset of the required Priority field in this register is N MOD 4, where:
– byte offset 0 refers to register bits[7:0]
– byte offset 1 refers to register bits[15:8]
– byte offset 2 refers to register bits[23:16]
– byte offset 3 refers to register bits[31:24].
31
23
15
7
SAM3X/A
SAM3X/A
Software Trigger Interrupt Register
30
22
14
6
Write to the STIR to generate a Software Generated Interrupt (SGI). See the register summary
in
When the USERSETMPEND bit in the SCR is set to 1, unprivileged software can access the
STIR, see
Only privileged software can enable unprivileged access to the STIR.
The bit assignments are:
Table 12-27 on page 157
“System Control Register” on page
29
21
13
5
Reserved
28
20
12
4
for the STIR attributes.
Reserved
Reserved
INTID
27
19
11
3
178.
26
18
10
2
25
17
9
1
11057B–ATARM–28-May-12
11057B–ATARM–28-May-12
INTID
24
16
8
0
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