ATxmega128B1 Atmel Corporation, ATxmega128B1 Datasheet - Page 365

• Manufacturer Part Number: ATxmega128B1
• Manufacturer: Atmel Corporation

Specifications of ATxmega128B1

• Flash (kbytes): 128 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 53
• Ext Interrupts: 53
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 3
• Twi (i2c): 1
• Uart: 2
• Segment Lcd: 160
• 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
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• Sram (kbytes): 8
• 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: 3
• Output Compare Channels: 10
• Input Capture Channels: 10
• Pwm Channels: 10
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

27.5.2
27.6
8291A–AVR–10/11
Data Registers
Scanning the PDI Pins
Two observe-only cells are inserted to make the combined RESET and PDI_CLK pin and the
PDI_DATA pin observable. Even though the PDI_DATA pin is bidirectional, it is only made
observable in order to avoid any extra logic on the PDI_DATA output path.
Figure 27-3. An observe-only input cell.
The supported data registers that can be connected between TDI and TDO are:
Figure 27-4. JTAG data register overview.
• Bypass register (Ref: register A in
• Device identification register (Ref: register C in
• Boundary scan chain (Ref: register D in
• PDICOM data register (Ref: register B in
From system
pin
D
D
D
D
D
D
D
D
D
I/O PORTS
D
PDI
D
JTAG
Figure 27-4 on page
0
1
Figure 27-4 on page
Figure 27-4 on page
A
B
C
Internal registers
B
C
Figure 27-4 on page
C
B
CTRL
TAP
Atmel AVR XMEGA B
C
D Q
365).
To next cell
365).
365)
to all TCK
registers
365).
To system
logic
TMS
TCK
TDO
TDI
365