AT32UC3B1256-Z1UR Atmel, AT32UC3B1256-Z1UR Datasheet - Page 54

• Manufacturer Part Number: AT32UC3B1256-Z1UR
• Description: MCU AVR32 256K FLASH 48-QFN
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3B1256-Z1UR

• Package / Case: 48-QFN Exposed Pad
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 60MHz
• Number Of I /o: 28
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Program Memory Size: 256KB (256K x 8)
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity: I²C, IrDA, SPI, SSC, UART/USART, USB
• Core Size: 32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

9.6.4
Name:
Access Type:
Offset:
Reset Value:
•
•
•
•
32059J–12/2010
PLLCOUNT: PLL Count
PLLMUL: PLL Multiply Factor
PLLDIV: PLL Division Factor
PLLOPT: PLL Option
31
23
15
7
-
-
-
-
Specifies the number of slow clock cycles before ISR:LOCKn will be set after PLLn has been written, or after PLLn has been
These fields determine the ratio of the ouput frequency of the internal VCO of the PLL (f
If PLLOPT[1] bit is set to 0: f
If PLLOPT[1] bit is set to 1: f
Note that the PLLMUL field cannot be equal to 0 or 1, or the behavior of the PLL will be undefined.
PLLDIV gives also the input frequency of the PLL (f
if the PLLDIV field is set to 0: f
if the PLLDIV field is greater than 0: f
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
VCO
VCO
automatically re-enabled after exiting a sleep mode.
PLL Control Register
= (PLLMUL+1)/(PLLDIV) * f
= 2 * (PLLMUL+1) * f
30
22
14
6
-
-
-
-
PLL0,1
Read/Write
0x020, 0x024
0x00000000
OSC
PLL
PLL
if PLLDIV = 0.
IN
29
21
13
= f
= f
5
-
-
-
= f
OSC
VCO.
VCO
OSC.
if PLLDIV > 0.
IN
/ 2
= f
.
OSC
/ (2 * PLLDIV).
28
20
12
4
-
-
IN
):
PLLOPT
27
19
11
3
PLLCOUNT
26
18
10
2
PLLMUL
PLLDIV
VCO
) to the source oscillator frequency:
PLLOSC
25
17
9
1
AT32UC3B
PLLEN
24
16
8
0
54