AT32UC3A464 Atmel Corporation, AT32UC3A464 Datasheet - Page 792

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AT32UC3A464

Manufacturer Part Number
AT32UC3A464
Description
Manufacturer
Atmel Corporation

Specifications of AT32UC3A464

Flash (kbytes)
64 Kbytes
Pin Count
100
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
Hardware Qtouch Acquisition
No
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
2
Uart
4
Ssc
1
Sd / Emmc
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
128
Self Program Memory
YES
Dram Memory
No
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0 to 3.6
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes

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28.7.2
Name:
Access Type:
Offset:
Reset Value:
• SHTIM: Sample & Hold Time
• STARTUP: Start Up Time
• PRESCAL: Prescaler Rate Selection
• SLEEP: Sleep Mode
• LOWRES: Resolution
• TRGSEL: Trigger Selection
• TRGEN: Trigger Enable
32072G–11/2011
31
23
15
0
0
0
0
1
1
1
7
Sample & Hold Time = (SHTIM+3) / ADCClock
Startup Time = (STARTUP+1) * 8 / ADCClock
This Time should respect a minimal value. Refer to Electrical Characteristics section for details.
ADCClock = CLK_ADC / ( (PRESCAL+1) * 2 )
1: Sleep Mode is selected.
0: Normal Mode is selected.
1: 8-bit resolution is selected.
0: 10-bit resolution is selected.
1: The hardware trigger selected by the TRGSEL field is enabled.
0: The hardware triggers are disabled. Starting a conversion is only possible by software.
Mode Register
TRGSEL
30
22
14
0
0
1
1
0
0
1
MR
Read/Write
0x04
0x00000000
6
SLEEP
29
21
13
0
1
0
1
0
1
0
5
Selected TRGSEL
Internal Trigger 0, depending of chip integration
Internal Trigger 1, depending of chip integration
Internal Trigger 2, depending of chip integration
Internal Trigger 3, depending of chip integration
Internal Trigger 4, depending of chip integration
Internal Trigger 5, depending of chip integration
External trigger
LOWRES
28
20
12
4
PRESCAL
STARTUP
27
19
11
3
TRGSEL
26
18
10
2
SHTIM
25
17
9
1
TRGEN
24
16
8
0
792

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