Atmel AVR XMEGA AU series

127
8331B–AVR–03/12
Atmel AVR XMEGA AU
• Bit 7:0 – BACKUP0[7:0]: Backup Register 0
This register can be used to store data in the battery backup system before the main power is
lost or removed.
10.6.4 BACKUP1: Battery Backup register 1
• Bit 7:0 – BACKUP1[7:0]: Battery Backup Register 1
This register can be used to store data in the battery backup system before the main power is
lost or removed.
10.7 Register Summary
Bit 76543210
+0x03
BACKUP1[7:0] BACKUP1
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Initial Valuexxxxxxxx
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page
+0x00
CTRL – – HIGHESR XOSCSEL XOSCEN XOSCFDEN ACCEN RESET 125
+0x01
STATUS BBPWR – – – XOSCRDY OSCFAIL BBBODF BBPODF 126
+0x02
BACKUP0 BACKUP0[7:0] 126
+0x03
BACKUP1 BACKUP1[7:0] 127