Rainbow-electronics AT90S2313 Manual de usuario descargar pdf (Pagina 12)

AT90S2313

0839I–AVR–06/02

Data Indirect with Pre-

decrement

Figure 15. Data Indirect Addressing with Pre-decrement

The X-, Y-, or Z-register is decremented before the operation. Operand address is the

decremented contents of the X-, Y-, or Z-register.

Data Indirect with Post-

increment

Figure 16. Data Indirect Addressing with Post-increment

The X-, Y-, or Z-register is incremented after the operation. Operand address is the con-

tents of the X-, Y-, or Z-register prior to incrementing.

Constant Addressing Using

the LPM Instruction

Figure 17. Code Memory Constant Addressing

Constant byte address is specified by the Z-register contents. The 15 MSBs select word

address (0 - 1K), the LSB selects low byte if cleared (LSB = 0) or high byte if set (LSB =

1).

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 91 92

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