Rainbow Electronics AT90C8534 - Manual (Page 10)

AT90C8534
10
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
16 31
15 0
16 LSBs
$0000
$015F
20 19
Data Space