ATEVK1104 Atmel, ATEVK1104 Datasheet - Page 57
ATEVK1104
Manufacturer Part Number
ATEVK1104
Description
KIT DEV/EVAL FOR AVR32 AT32UC3A
Manufacturer
Atmel
Series
AVR®32r
Type
MCUr
Datasheets
1.ATAVRONE-PROBECBL.pdf
(16 pages)
2.ATEVK1104.pdf
(826 pages)
3.ATEVK1104.pdf
(90 pages)
4.ATEVK1104.pdf
(6 pages)
5.ATEVK1104.pdf
(12 pages)
Specifications of ATEVK1104
Contents
Evaluation Board, Software and Documentation
Processor To Be Evaluated
AT32UC3A3
Data Bus Width
32 bit
Interface Type
USB, SPI, USART
Silicon Manufacturer
Atmel
Core Architecture
AVR
Core Sub-architecture
AVR UC3
Silicon Core Number
AT32UC3A3256
Silicon Family Name
AVR
Kit Contents
Board CD Docs
Rohs Compliant
Yes
For Use With/related Products
AT32UC3A3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATEVK1104
Manufacturer:
Atmel
Quantity:
135
- ATAVRONE-PROBECBL PDF datasheet
- ATEVK1104 PDF datasheet #2
- ATEVK1104 PDF datasheet #3
- ATEVK1104 PDF datasheet #4
- ATEVK1104 PDF datasheet #5
- Current page: 57 of 826
- Download datasheet (20Mb)
O s c 1
c lo c k
O s c 0
13.5.4.1
32058J–AVR32–04/11
c lo c k
P L L O S C
0
1
Enabling the PLL
D iv id e r
P L L D I V
I n p u t
divide the output of the PLL by two and bring the clock in range of the max frequency of the
CPU.
When the PLL is switched on, or when changing the clock source or multiplication factor for the
PLL, the PLL is unlocked and the output frequency is undefined. The PLL clock for the digital
logic is automatically masked when the PLL is unlocked, to prevent connected digital logic from
receiving a too high frequency and thus become unstable.
Figure 13-3. PLL with control logic and filters
PLLn is enabled by writing the PLLEN bit in the PLLn register. PLLOSC selects Oscillator 0 or 1
as clock source. The PLLMUL and PLLDIV bitfields must be written with the multiplication and
division factors, respectively, creating the voltage controlled ocillator frequency f
frequency f
If PLLOPT[1] field is set to 0:
If PLLOPT[1] field is set to 1:
The PLLn:PLLOPT field should be set to proper values according to the PLL operating fre-
quency. The PLLOPT field can also be set to divide the output frequency of the PLLs by 2.
The lock signal for each PLL is available as a LOCKn flag in POSCSR. An interrupt can be gen-
erated on a 0 to 1 transition of these bits.
f
f
f
f
VCO
VCO
PLL
PLL
= f
= f
= (PLLMUL+1)/(PLLDIV) • f
= 2*(PLLMUL+1) • f
PLL
D iv id e r
O u t p u t
D e t e c t o r
P L L M U L
VCO.
VCO
P h a s e
:
/ 2
.
P L L O P T
V C O
OSC
if PLLDIV = 0.
f
OSC
v c o
if PLLDIV > 0.
D e t e c t o r
1 / 2
L o c k
P L L O P T [ 1 ]
0
1
f
P L L
M a s k
AT32UC3A
VCO
L o c k b it
and the PLL
P L L c lo c k
57
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