ATxmega16D4 Atmel Corporation, ATxmega16D4 Datasheet - Page 198

• Manufacturer Part Number: ATxmega16D4
• Manufacturer: Atmel Corporation

Specifications of ATxmega16D4

• Flash (kbytes): 16 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 34
• Ext Interrupts: 34
• Usb Speed: No
• Usb Interface: No
• Spi: 4
• Twi (i2c): 2
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 12
• Adc Speed (ksps): 200
• Analog Comparators: 2
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 1024
• 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: 4
• Output Compare Channels: 14
• Input Capture Channels: 14
• Pwm Channels: 14
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

17.6.4
17.7
17.8
Table 17-5.
8210B–AVR–04/10
Address
+0x00
+0x01
+0x02
+0x03
Offset
0x00
Register Summary
SPI Interrupt vectors
DATA - SPI Data Register
Name
SPI Interrupt vector and its offset word address
INTCTRL
STATUS
CTRL
DATA
SPI_vect
• Bit 6 - WRCOL: Write Collision Flag
The WRCOL bit is set if the DATA register is written during a data transfer. The WRCOL bit is
cleared by first reading the STATUS register with WRCOL set, and then accessing the DATA
register.
• Bit 5:0 - 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.
The DATA register used for sending and receiving data. Writing to the register initiates the data
transmission, and the byte written to the register will be shifted out on the SPI output line. Read-
ing the register causes the Shift Register Receive buffer to be read, and return the last bytes
successfully received.
Source
CLK2X
Bit 7
Bit
+0x03
Read/Write
Initial Value
IF
–
ENABLE
WRCOL
Bit 6
R/W
–
7
0
Interrupt Description
SPI Interrupt vector
R/W
Bit 5
DORD
6
0
–
–
R/W
MASTER
5
0
Bit 4
–
–
DATA[7:0]
R/W
4
0
Bit 3
DATA[7:0]
–
–
MODE[1:0]
R/W
3
0
Bit 2
–
–
R/W
2
0
Bit 1
–
PRESCALER[1:0]
INTLVL[1:0]
R/W
1
0
XMEGA D
Bit 0
–
R/W
0
0
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