AT32UC3A3128 Atmel Corporation, AT32UC3A3128 Datasheet - Page 63

• Manufacturer Part Number: AT32UC3A3128
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A3128

• Flash (kbytes): 128 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 110
• Ext Interrupts: 110
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Ssc: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 16
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: sdram
• 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
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 12
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

7.6.6
Name:
Access Type:
Offset:
Reset Value:
• STARTUP: Oscillator Startup Time
• MODE: Oscillator Mode
• OSC32EN: Enable the 32 KHz oscillator
32072G–11/2011
STARTUP
0
1
2
3
4
5
6
7
31
23
15
7
-
-
-
-
Select startup time for 32 KHz oscillator
Note: This register is only reset by Power-On Reset
Choose between crystal, or external clock
0: External clock connected on XIN32, XOUT32 can be used as a I/O (no crystal)
1: Crystal is connected to XIN32/XOUT32 - Oscillator is used with automatic gain control
2 to 7: Reserved
0: 32 KHz Oscillator is disabled
1: 32 KHz Oscillator is enabled
32 KHz Oscillator Control Register
Number of RC oscillator
clock cycle
0
128
8192
16384
65536
131072
262144
524288
30
22
14
OSCCTRL32
Read/Write
0x30
0x00000000
6
-
-
-
-
29
21
13
5
-
-
-
-
Approximative Equivalent time
(RCSYS = 115 kHz)
0
1.1 ms
72.3 ms
143 ms
570 ms
1.1 s
2.3 s
4.6 s
28
20
12
4
-
-
-
-
27
19
11
3
-
-
-
-
26
18
10
2
-
-
STARTUP
MODE
25
17
9
1
-
-
OSC32EN
24
16
8
0
-
63