CW308T-XMEGA

CW308T-XMEGA
Target Device	Atmel XMEGA
Target Architecture	8-bit Harvard
Hardware Crypto	Possible
Design Files	GITHub Link 1-Click BOM OSH Park PCBs

The CW308T-XMEGA fits an Atmel XMEGA device.

I/O Connections

CW308 Pin	ATXMega Pin	Notes
GPIO1	PC3 (TXD0)	Serial OUTPUT from AVR.
GPIO2	PC2 (RXD0)	Serial INPUT to AVR.
GPIO3	PA1	Spare pin.
GPIO4	PA0	Trigger pin.
CLKIN	XTAL1
CLKFB	PB3	Can output clock on this pin. Useful for synchronizing to internal RC oscillator.
LED1	PA5
LED2	PA6
LED3	PA7
PDID	PDID	In-System programming.
PDIC/nRST	nRST/PDIC	In-System programming.

Hardware AES

The XMEGA device that ships with most standard boards is the ATXmega128D4-AU, the same device on the ChipWhisperer-Lite. This board does not contain hardware AES to simplify compliance with export rules.

The pin-compatible ATXmega128A4U-AU contains a hardware AES accelerator. If you wish to attack this device, you can purchase the blank CW308T-XMEGA PCB (or download gerbers from the GIT repository and make them yourselves) and mount the appropriate XMEGA device.

Programming Header

The 6-pin programming heading can be used with the Atmel PDI interface. The pinout of the 6-pin programming header on the main-board allows it to work with standard Atmel ISP tools:

Schematic

Old Hardware (see RTFM.NEWAE.COM for new)

3rd Party Targets	SAKURA-G Target • SASEBO-W Target
Test Equipment	PicoScope (USB Scope) • VISA Connected Oscilloscope
Obsolete	CW1002 ChipWhisperer Capture Rev2 • CW301 Multi-Target