Atmel CAVR-4 Manual De Usuario

CAVR-4

Part 2. Compiler reference

-v

-v[0|1|2|3|4|5|6] 

Use this option to select the processor derivative for which the code is to be generated. 
The following processor variants are available:

-v0

AT90S2313

AT90S2323

AT90S2333

AT90S2343

AT90S4433

ATtiny13

ATtiny26

ATtiny2313

The code space is physically limited to 8 Kbytes, and the 

RCALL/RJMP

 instructions are used for reaching the code 

space. Interrupt vectors are 2 bytes long. The compiler 

assumes that the index registers X, Y, and Z are eight bits 

wide when accessing the built-in SRAM. It also assumes 

that it is not possible to attach any external memory to the 

microcontroller and that it therefore should not generate 

any constant segment in data space (_C segment). Instead 

the compiler adds an implicit -y command line option. It 

will also try to place all aggregate initializers in flash 

memory, that is, the implicit --initializers_in_flash option is 

also added to the command line. Relative function calls are 

made.

-v1

AT90S4414 

AT90S4434 

AT90S8515 

AT90S8534 

AT90S8535

ATmega8

ATmega48

ATmega88

ATmega8515

ATmega8535

The code space is physically limited to 8 Kbytes, and the 

RCALL/RJMP

 instructions are used for reaching the code 

space. Interrupt vectors are 2 bytes long. The compiler 

assumes that it is possible to have external memory and 

will therefore generate _C segments. Relative function calls 

are made.