Rainbow Electronics AT90LS4433 - Manual (Page 13)

13
AT90S/LS4433
1042G–AVR–09/02
I/O Direct Figure 12. 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 13. Direct Data Addressing
A 16-bit data address is contained in the 16 LSBs of a two-word instruction. Rd/Rr spec-
ify the destination or source register.
Data Indirect with
Displacement Figure 14. Data Indirect with Displacement
Operand address is the result of the Y- or Z-register contents added to the address con-
tained in six bits of the instruction word.
OP Rr/Rd
16 31
15 0
16 LSBs
$0000
$00DF
20 19
Data Space
Data Space
$0000
$00DF
Y OR Z - REGISTER
OP a n
0
0 5 6 10
15
15