M42800A Atmel Corporation, M42800A Datasheet - Page 87

• Manufacturer Part Number: M42800A
• Manufacturer: Atmel Corporation

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

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
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