Datasheet

37
XMEGA B [DATASHEET]
8291B–AVR–01/2013
4.16.5 RCOSC32MA – Internal 32MHz RC Oscillator Calibration register
 Bit 7:0 – RCOSC32MA[7:0]: Internal 32MHz Oscillator Calibration Value
This byte contains the oscillator calibration value for the internal 32MHz oscillator. Calibration of the oscillator is
performed during production testing of the device. During reset, this value is automatically loaded into calibration register
A for the 32MHz DFLL. Refer to “CALA – Calibration register A” on page 93 for more details.
4.16.6 LOTNUM0 – Lot Number register 0
LOTNUM0, LOTNUM1, LOTNUM2, LOTNUM3, LOTNUM4, and LOTNUM5 contain the lot number for each device.
Together with the wafer number and wafer coordinates, this gives a serial number for the device.
 Bit 7:0 – LOTNUM0[7:0]: Lot Number Byte 0
This byte contains byte 0 of the lot number for the device.
4.16.7 LOTNUM1 – Lot Number register 1
 Bit 7:0 – LOTNUM1[7:0]: Lot Number Byte 1
This byte contains byte 1 of the lot number for the device.
4.16.8 LOTNUM2 – Lot Number register 2
 Bit 7:0 – LOTNUM2[7:0]: Lot Number Byte 2
This byte contains byte 2 of the lot number for the device.
Bit 7 6 5 4 3 2 1 0
+0x04 RCOSC32MA[7:0]
Read/Write R R R R R R R R
Initial Value x x x x x x x x
Bit 7 6 5 4 3 2 1 0
+0x08 LOTNUM0[7:0]
Read/Write R R R R R R R R
Initial Value x x x x x x x x
Bit 7 6 5 4 3 2 1 0
+0x09 LOTNUM1[7:0]
Read/Write R R R R R R R R
Initial Value x x x x x x x x
Bit 7 6 5 4 3 2 1 0
+0x0A LOTNUM2[7:0]
Read/Write R R R R R R R R
Initial Value x x x x x x x x