ATxmega192A3U Atmel Corporation, ATxmega192A3U Datasheet - Page 95

• Manufacturer Part Number: ATxmega192A3U
• Manufacturer: Atmel Corporation

Specifications of ATxmega192A3U

• 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 Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 10
• Twi (i2c): 2
• Uart: 7
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 4
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• 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: 7
• Output Compare Channels: 22
• Input Capture Channels: 22
• Pwm Channels: 22
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

7.10.2
7.10.3
8331A–AVR–07/11
STATUS – Oscillator Status Register
XOSCCTRL – XOSC Control Register
• Bit 7:5 – 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 4 – PLLRDY: PLL Ready
This flag is set when the PLL has locked on the selected frequency and is ready to be used as
the system clock source.
• Bit 3 – XOSCRDY: External Clock Source Ready
This flag is set when the external clock source is stable and is ready to be used as the system
clock source.
• Bit 2 – RC32KRDY: 32.768kHz Internal Oscillator Ready
This flag is set when the 32.768kHz internal oscillator is stable and is ready to be used as the
system clock source.
• Bit 1 – RC32MRDY: 32MHz Internal Oscillator Ready
This flag is set when the 32MHz internal oscillator is stable and is ready to be used as the sys-
tem clock source.
• Bit 0 – RC2MRDY: 2MHz Internal Oscillator Ready
This flag is set when the 2MHz internal oscillator is stable and is ready to be used as the system
clock source.
• Bit 7:6 – FRQRANGE[1:0]: 0.4 - 16MHz Crystal Oscillator Frequency Range Select
These bits select the frequency range for the connected crystal oscillator according to
on page
Bit
+0x02
Read/Write
Initial Value
Bit
+0x01
Read/Write
Initial Value
96.
R/W
R
FRQRANGE[1:0]
7
–
0
7
0
R/W
R
6
–
0
6
0
X32KLPM
R
5
–
0
R/W
5
0
PLLRDY
XOSCPWR
R
4
0
R/W
4
0
XOSCRDY
3
R
0
R/W
Atmel AVR XMEGA AU
3
0
RC32KRDY
R/W
2
R
0
2
0
XOSCSEL[3:0]
RC32MRDY
R/W
1
0
R
1
0
RC2MRDY
R/W
0
0
R
0
0
Table 7-7
XOSCCTRL
STATUS
95