Datasheet

SAM9G45 [DATASHEET]
Atmel-6438O-ATARM-SAM9G45-Datasheet_08-Dec-15
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6.3 Chip Identification
The SAM9G45 Chip ID is defined in the Debug Unit Chip ID Register and Debug Unit Chip ID Extension Register.
 Chip ID: 0x819B05A2
 Ext ID: 0x00000004
 JTAG ID: 05B2_703F
 ARM926 TAP ID: 0x0792603F
6.4 Backup Section
The SAM9G45 features a Backup Section that embeds:
 RC Oscillator
 Slow Clock Oscillator
 SCKCR
 RTT
 RTC
 Shutdown Controller
 128-bit backup registers
 A part of RSTC
This section is powered by the VDDBU rail.