M42800A Atmel Corporation, M42800A Datasheet - Page 87
M42800A
Manufacturer Part Number
M42800A
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(153 pages)
3.M42800A.pdf
(224 pages)
4.M42800A.pdf
(27 pages)
Specifications of M42800A
Flash (kbytes)
0 Kbytes
Pin Count
144
Max. Operating Frequency
33 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
54
Ext Interrupts
54
Usb Speed
No
Usb Interface
No
Spi
2
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
8
Self Program Memory
NO
External Bus Interface
1
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.3/5.0
Fpu
No
Mpu / Mmu
no / no
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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14.11 AIC Source Mode Register
Register Name:
Access Type:
Reset Value:
• PRIOR: Priority Level (Code Label AIC_PRIOR)
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 (Code Label AIC_SRCTYPE)
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.
1779D–ATARM–14-Apr-06
X
X
31
23
15
0
0
1
1
–
–
–
7
–
SRCTYPE
SRCTYPE
0
1
0
1
0
1
AIC_SMR0..AIC_SMR31
Read/Write
0
30
22
14
–
–
–
6
SRCTYPE
Internal Sources
Level Sensitive
Edge triggered
External Sources
Low-level Sensitive
Negative Edge triggered
High-level Sensitive
Positive Edge triggered
29
21
13
–
–
–
5
28
20
12
–
–
–
4
–
27
19
11
–
–
–
3
–
Code Label
AIC_SRCTYPE_INT_LEVEL_SENSITIVE
AIC_SRCTYPE_INT_EDGE_TRIGGERED
Code Label
AIC_SRCTYPE_EXT_LOW_LEVEL
AIC_SRCTYPE_EXT_NEGATIVE_EDGE
AIC_SRCTYPE_EXT_HIGH_LEVEL
AIC_SRCTYPE_EXT_POSITIVE_EDGE
26
18
10
–
–
–
2
AT91M42800A
PRIOR
25
17
–
–
9
–
1
24
16
–
–
8
–
0
87
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