For further documentation on the EDBG, see the EDBG User Guide.

3.2.

Hardware Identification System

All Xplained Pro compatible extension boards have an Atmel ATSHA204 CryptoAuthentication

mounted. This chip contains information that identifies the extension with its name and some extra data.

When an Xplained Pro extension is connected to an Xplained Pro MCU board the information is read and

sent to Atmel Studio. The Atmel Kits extension, installed with Atmel Studio, will give relevant information,

code examples, and links to relevant documents. The table below shows the data fields stored in the ID

chip with example content.

Table 3-2. Xplained Pro ID Chip Content

Data field

Data type

Example content

Manufacturer

ASCII string

Atmel'\0'

Product Name

ASCII string

Segment LCD1 Xplained Pro'\0'

Product Revision

ASCII string

02'\0'

Product Serial Number

ASCII string

1774020200000010’\0’

Minimum Voltage [mV]

uint16_t

3000

Maximum Voltage [mV]

uint16_t

3600

Maximum Current [mA]

uint16_t

30

3.3.

Power Sources

The SAM R21 Xplained Pro kit can be powered by several power sources as listed in the table below.

Table 3-3. Power Sources for SAM R21 Xplained Pro

Power input

Voltage requirements

Current requirements

Connector marking

External power

5V ±2% (±100mV) for

USB host operation.

4.3V to 5.5V if USB host

operation is not

required.

Recommended

minimum is 1A to be

able to provide enough

current for connected

USB devices and the

board itself.

Recommended

maximum is 2A due to

the input protection

maximum current

specification.

PWR

Embedded debugger

USB

4.4V to 5.25V (according

to USB spec.)

500mA (according to

USB spec.)

DEBUG USB

Target USB

4.4V to 5.25V (according

to USB spec.)

500mA (according to

USB spec.)

TARGET USB

The kit will automatically detect which power sources are available and choose which one to use

according to the following priority:

Atmel SAM R21 Xplained Pro [USER GUIDE]

Atmel-42243D-SAM-R21-Xplained-Pro_User Guide-04/2016

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