ATxmega32D4 Atmel Corporation, ATxmega32D4 Datasheet - Page 259

• Manufacturer Part Number: ATxmega32D4
• Manufacturer: Atmel Corporation

Specifications of ATxmega32D4

• Flash (kbytes): 32 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): 4
• 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

22.3
22.3.1
8210B–AVR–04/10
PDI Physical
Enabling
Figure 22-1. The PDI with PDI physical and closely related modules (grey)
The PDI physical layer handles the basic low-level serial communication. The physical layer
uses a bi-directional half-duplex synchronous serial receiver and transmitter (as a USART in
USRT mode). The physical layer includes start-of-frame detection, frame error detection, parity
generation, parity error detection, and collision detection.
The PDI is accessed through two pins:
In addition to these two pins, V
grammer/debugger and the device.
Figure 22-2. PDI connection
The remainder of this section is only intended for third parties developing programming support
for XMEGA.
The PDI Physical must be enabled before it can be used. This is done by first forcing the
PDI_DATA line high for a period longer than the equivalent external reset minimum pulse width
PDI_CLK
PDI_DATA
• PDI_CLK: PDI clock input (Reset pin).
• PDI_DATA: PDI data input/output (Test pin).
Program and Debug Interface (PDI)
Gnd
(physical layer)
PDI Physical
Programmer/
Debugger
CC
and GND must also be connected between the External Pro-
Figure 22-2 on page 259
Controller
PDI
Vcc
shows a typical connection.
PDI_CLK (RESET)
PDI_DATA (TEST)
PDIBUS
Internal Interfaces
XMEGA D
Controller
Memories
OCD
NVM
NVM
259