Rainbow Electronics AT90LS8535 - Manual (Page 13)

13
AT90S/LS8535
1041H–11/01
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.
Data Indirect with
Displacement Figure 13. 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.
Data Indirect Figure 14. Data Indirect Addressing
Operand address is the contents of the X-, Y-, or the Z-register.
OP Rr/Rd
16 31
15 0
16 LSBs
$0000
$025F
20 19
Data Space
Data Space
$0000
025F
Y OR Z - REGISTER
OP a n
0
0 5 6 10
15
15
Data Space
$0000
$025F
X, Y OR Z - REGISTER
0 15