3.1 Hardware Identification System

All Xplained Pro extension boards come with an identification CryptoAuthentication™ chip (ATSHA204A) to uniquely identify the boards that are connected to the Xplained Pro evaluation kit. This chip contains information that identifies the extension by its name and other additional data. When an Xplained Pro extension is connected to an Xplained Pro evaluation kit, the information is read and sent to Atmel Studio. The following table shows the data fields stored in the ID chip with example content.

Table 3-1. Xplained Pro ID Chip Content
Data FieldData TypeExample Content
ManufacturerASCII stringMicrochip’\0’
Product nameASCII stringSegment T9Xplained Pro’\0’
Product revisionASCII string01’\0’
Product serial numberASCII string3338011800000001’\0’
Minimum voltage [mV]uint16_t3000
Maximum voltage [mV]uint16_t3600
Maximum current [mA]uint16_t30