atmega161-4pi ATMEL Corporation, atmega161-4pi Datasheet - Page 15

• Manufacturer Part Number: atmega161-4pi
• Description: 8-bit Microcontroller With 16k Bytes Of In-system Programmable Flash
• Manufacturer: ATMEL Corporation

Data Indirect with
Displacement
Data Indirect
Data Indirect with Pre-
decrement
1228D–AVR–02/07
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.
Figure 14. Data Indirect Addressing
Operand address is the contents of the X-, Y-, or Z-register.
Figure 15. Data Indirect Addressing with Pre-decrement
The X-, Y-, or Z-register is decremented before the operation. Operand address is the
decremented contents of the X-, Y-, or Z-register.
15
15
15
15
OP
X, Y, OR Z - REGISTER
Y OR Z - REGISTER
X, Y, OR Z - REGISTER
10
n
6
5
a
0
0
-1
0
0
ATmega161(L)
Data Space
Data Space
Data Space
$0000
$FFFF
$0000
$FFFF
$0000
$FFFF
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