ATEVK1105 Atmel, ATEVK1105 Datasheet - Page 72

• Manufacturer Part Number: ATEVK1105
• Description: KIT EVAL FOR AT32UC3A0
• Manufacturer: Atmel
• Series: AVR®32r
• Type: MCUr

Specifications of ATEVK1105

• Contents: Evaluation Board, Software and Documentation
• Processor To Be Evaluated: AT32UC3A0512
• Processor Series: AVR
• Data Bus Width: 32 bit
• Interface Type: USART, TWI, USB, SPI, Ethernet
• Operating Supply Voltage: 3.3 V
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Core Sub-architecture: AVR UC3
• Silicon Core Number: AT32UC3A0512
• Silicon Family Name: AVR
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT32UC3A0
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.6.4
Name:
Access Type:
•
•
•
•
•
32058J–AVR32–04/11
RESERVED: Reserved bitfields
PLLCOUNT: PLL Count
PLLMUL: PLL Multiply Factor
PLLDIV: PLL Division Factor
PLLOPT: PLL Option
31
23
15
7
-
Reserved for internal use. Always write to 0.
Specifies the number of slow clock cycles before ISR:LOCKn will be set after PLLn has been written, or after PLLn has been
automatically re-enabled after exiting a sleep mode.
These bitfields determine the ratio of the PLL output frequency (voltage controlled oscillator frequency f
oscillator frequency:
If PLLOPT[1] field is set to 0:
f
If PLLOPT[1] field is set to 1:
f
Note that the MUL field cannot be equal to 0 or 1, or the behavior of the PLL will be undefined.
Select the operating range for the PLL.
PLLOPT[0]: Select the VCO frequency range.
PLLOPT[1]: Enable the extra output divider.
PLLOPT[2]: Disable the Wide-Bandwidth mode (Wide-Bandwidth mode allows a faster startup time and out-of-lock time).
f
f
PLL
PLL
VCO
VCO
RESERVED
PLL Control
= f
= f
= (PLLMUL+1)/(PLLDIV) • f
= 2*(PLLMUL+1) • f
VCO.
VCO
/ 2
.
30
22
14
6
-
PLL0,1
Read/Write
RESERVED
RESERVED
OSC
if PLLDIV = 0.
29
21
13
5
-
OSC
if PLLDIV > 0.
28
20
12
4
PLLOPT
27
19
11
3
PLLCOUNT
26
18
10
2
PLLMUL
PLLDIV
PLLOSC
25
17
9
1
VCO
AT32UC3A
) to the source
PLLEN
24
16
8
0
72