Rainbow-electronics AT90C8534 Manual do Utilizador descarregar pdf (Página 10)

AT90C8534

I/O Direct

Figure 11. I/O Direct Addressing

Operand address is contained in six bits of the instruction word. n is the destination or source register address.

Data Direct

Figure 12. Direct Data Addressing

A 16-bit data address is contained in the 16 LSBs of a 2-word instruction. Rd/Rr specify the destination or source register.

OP Rr/Rd

15 0

16 LSBs

$0000

$015F

20 19

Data Space

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 53 54

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