2.1 Device Description

This compiler guide describes the MPLAB XC8 compiler’s support for all 8-bit Microchip AVR devices, including tinyAVR®, and AVR XMEGA® devices.

The compiler takes advantage of the target device’s instruction set, addressing modes, memory, and registers whenever possible. A summary of the device families is shown below. This includes the offset of the special function registers and the offset at which program memory is mapped into the data space (where relevant).

See 3.6.2.4 Print-devices for information on finding the full list of devices that are supported by the compiler. Support for a new device might be possible after downloading an updated Device Family Pack.

Table 2-1. Summary of Supported Device Families
Family	ArchID	SFR Offset	Mapped Flash Address
avr1	1	0x20	n/a
avr2	2	0x20	n/a
avr25	25	0x20	n/a
avr3	3	0x20	n/a
avr31	31	0x20	n/a
avr35	35	0x20	n/a
avr4	4	0x20	n/a
avr5	5	0x20	n/a
avr51	51	0x20	n/a
avr6	6	0x20	n/a
avrtiny	100	0x0	0x4000
avrxmega2	102	0x0	n/a
avrxmega3	103	0x0	0x8000
avrxmega4	104	0x0	n/a
avrxmega5	105	0x0	n/a
avrxmega6	106	0x0	n/a
avrxmega7	107	0x0	n/a