ATxmega192D3 Atmel Corporation, ATxmega192D3 Datasheet - Page 70
ATxmega192D3
Manufacturer Part Number
ATxmega192D3
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega192D3
Flash (kbytes)
192 Kbytes
Pin Count
64
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
50
Ext Interrupts
50
Usb Speed
No
Usb Interface
No
Spi
5
Twi (i2c)
2
Uart
3
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
200
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
16
Eeprom (bytes)
2048
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.6 to 3.6
Operating Voltage (vcc)
1.6 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
5
Output Compare Channels
18
Input Capture Channels
18
Pwm Channels
18
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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6.10.7
8210B–AVR–04/10
DFLLCTRL - DFLL Control Register
Table 6-7.
Notes:
• Bit 5 - Reserved
This bit is reserved and will always be read as zero. For compatibility with future devices, always
write this bit to zero when this register is written.
• Bit 4:0 - PLLFAC[4:0]: Multiplication Factor
The PLLFAC bits set the multiplication factor for the PLL. The multiplication factor can be in the
range from 1x to 31x.
• Bit 7:2 - Reserved
These bits are reserved and will always be read as zero. For compatibility with future devices,
always write these bits to zero when this register is written.
• Bit 1 - RC32MCREF: 32 MHz Calibration Reference
This bit is used to select the calibration source for the 32 MHz DFLL. By default this bit is zero
and the 32.768 kHz internal RC oscillator is selected. If this bit is set to one the 32.768 kHz Crys-
tal Oscillator connected to TOSC selected as reference. The XOSCEN bit in the CTRL register
must be set to enable the external oscillator, and the XOSCLSEL bits in the XOSCCTRL register
must be set to 32.768 kHz TOSC when this clock source is selected as the the 32 MHz DFLL
reference.
• Bit 0 - RC2MCREF: 2 MHz Calibration Reference
This bit is used to select the calibration source for the 2 MHz DFLL. By default this bit is zero and
the 32.768 kHz internal RC oscillator is selected. If this bit is set to one the 32.768 kHz Crystal
Oscillator on TOSC is selected as reference. The XOSCEN bit in the CTRL register must be set
to enable the external oscillator, and the XOSCLSEL bits in the XOSCCTRL register must be set
to 32.768 kHz TOSC when this clock source is selected as the the 2 MHz DFLL reference.
Bit
+0x06
Read/Write
Initial Value
CLKSRC[1:0]
1. 32 kHz TOSC cannot be selected as source for the PLL. An external clock must be minimum
0.4 MHz to be used as source clock.
00
01
10
11
R
7
–
0
PLL Clock Source
R
6
–
0
Group Configuration
R
5
–
0
RC32M
RC2M
XOSC
-
4
–
R
0
R
3
–
0
PLL input source
2 MHz Internal RC Oscillator
Reserved
32 MHz Internal RC Oscillator
External Clock Source
R
2
–
0
R32MCREF
R/W
1
0
(1)
RC2MCREF
XMEGA D
R/W
0
0
DFLLCTRL
70
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