ATTINY15 ATMEL [ATMEL Corporation], ATTINY15 Datasheet - Page 7

• Manufacturer Part Number: ATTINY15
• Manufacturer: ATMEL [ATMEL Corporation]

The Program and Data
Addressing Modes
Register Direct, Single-
register Rd
Register Indirect
Register Direct, Two Registers
Rd and Rr
1187D–12/01
The ATtiny15L AVR RISC Microcontroller supports powerful and efficient addressing
modes. This section describes the various addressing modes supported in the
ATtiny15L. In the figures, OP means the operation code part of the instruction word. To
simplify, not all figures show the exact location of the addressing bits.
Figure 4. Direct Single-register Addressing
The operand is contained in register d (Rd).
Figure 5. Indirect Register Addressing
The register accessed is the one pointed to by the Z-register low byte (R30).
Figure 6. Direct Register Addressing, Two Registers
REGISTER FILE
Z-register
0
30
31
ATtiny15L
7