AT32UC3A0128 Atmel Corporation, AT32UC3A0128 Datasheet - Page 89

• Manufacturer Part Number: AT32UC3A0128
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A0128

• 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: 109
• Ext Interrupts: 109
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 1
• Uart: 4
• Ssc: 1
• Ethernet: 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): 32
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Operating Voltage (vcc): 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 10
• Output Compare Channels: 16
• Input Capture Channels: 6
• Pwm Channels: 13
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

32058K AVR32-01/12
14.6
14.6.1
Name:
Access Type:
•
•
•
•
CLKEN: Clock enable
PSEL: Prescale Select
BUSY: RTC busy
CLK32: 32 KHz oscillator select
Offset
31
23
15
0x1C
0x00
0x04
0x08
0x10
0x14
0x18
0x20
7
-
-
-
-
User Interface
0: The clock is disabled
1: The clockis enabled
Selects prescaler bit PSEL as source clock for the RTC.
0: The RTC accepts writes to TOP, VAL, and CTRL.
1: The RTC is busy and will discard writes to TOP, VAL, and CTRL.
0: The RTC uses the RC oscillator as clock source
1: The RTC uses the 32 KHz oscillator as clock source
RTC Control
30
22
14
6
-
-
-
-
CTRL
Read/Write
RTC Interrupt Disable
RTC Interrupt Enable
RTC Interrupt Status
RTC Interrupt Mask
RTC Interrupt Clear
RTC Control
RTC Value
29
21
13
Register
RTC Top
5
-
-
-
-
BUSY
28
20
12
4
-
-
-
CLK32
27
19
11
3
-
-
Register Name
CTRL
TOP
VAL
IMR
IDR
ISR
ICR
IER
WAKE_EN
26
18
10
2
-
-
PSEL
Read/Write
Read/Write
Read/Write
Read-only
Read-only
Write-only
Write-only
Write-only
Access
PCLR
25
17
9
1
-
-
AT32UC3A
CLKEN
Reset
EN
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
24
16
8
0
-
89