Data direct, Data indirect with displacement, Data indirect – Rainbow Electronics AT90LS8535 User Manual
Page 13
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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
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