AT32UC3A1256AU Atmel Corporation, AT32UC3A1256AU Datasheet - Page 69
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AT32UC3A1256AU
Manufacturer Part Number
AT32UC3A1256AU
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(98 pages)
2.AT32UC3A0128.pdf
(826 pages)
3.AT32UC3A0128.pdf
(377 pages)
4.AT32UC3A0128.pdf
(33 pages)
5.AT32UC3A0128.pdf
(159 pages)
6.AT32UC3A0128AU.pdf
(2 pages)
Specifications of AT32UC3A1256AU
Flash (kbytes)
256 Kbytes
Pin Count
100
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
69
Ext Interrupts
69
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)
64
Self Program Memory
YES
Dram Memory
No
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
Available stocks
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- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A0128 PDF datasheet #4
- AT32UC3A0128 PDF datasheet #5
- AT32UC3A0128AU PDF datasheet #6
- Current page: 69 of 826
- Download datasheet (11Mb)
32058K AVR32-01/12
13.6.2
Name:
Access Type:
•
•
•
•
Note that if xxxDIV is written to 0, xxxSEL should also be written to 0 to ensure correct operation.
Also note that writing this register clears POSCSR:CKRDY. The register must not be re-written until CKRDY goes high.
PBBDIV, PBBSEL: PBB Division and Clock Select
PBADIV, PBASEL: PBA Division and Clock Select
HSBDIV, HSBSEL: HSB Division and Clock Select
CPUDIV, CPUSEL: CPU Division and Clock Select
CPUDIV
PBBDIV
PBADIV
HSBDIV
31
23
15
7
PBBDIV = 0: PBB clock equals main clock.
PBBDIV = 1: PBB clock equals main clock divided by 2
PBADIV = 0: PBA clock equals main clock.
PBADIV = 1: PBA clock equals main clock divided by 2
For the AT32UC3A, HSBDIV always equals CPUDIV, and HSBSEL always equals CPUSEL, as the HSB clock is always equal to
the CPU clock.
CPUDIV = 0: CPU clock equals main clock.
CPUDIV = 1: CPU clock equals main clock divided by 2
Clock Select
30
22
14
6
-
-
-
-
CKSEL
Read/Write
29
21
13
5
-
-
-
-
28
20
12
4
-
-
-
-
(PBBSEL+1)
(PBASEL+1)
(CPUSEL+1)
.
.
27
19
11
.
3
-
-
-
-
26
18
10
2
HSBSEL
CPUSEL
PBBSEL
PBASEL
25
17
9
1
AT32UC3A
24
16
8
0
69
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