atmega161-4pi ATMEL Corporation, atmega161-4pi Datasheet - Page 16

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

Data Indirect with Post-
increment
Constant Addressing Using
the LPM Instruction
Indirect Program Addressing,
IJMP and ICALL
16
ATmega161(L)
Figure 16. Data Indirect Addressing with Post-increment
The X-, Y-, or Z-register is incremented after the operation. Operand address is the con-
tents of the X-, Y-, or Z-register prior to incrementing.
Figure 17. Code Memory Constant Addressing
Constant byte address is specified by the Z-register contents. The 15 MSBs select word
address (0 - 8K), the LSB selects Low byte if cleared (LSB = 0) or High byte if set
(LSB = 1).
Figure 18. Indirect Program Memory Addressing
15
15
15
Z-REGISTER
Z-REGISTER
X, Y, OR Z - REGISTER
1 0
0
1
0
PROGRAM MEMORY
PROGRAM MEMORY
Data Space
1228D–AVR–02/07
$0000
$FFFF
$000
$1FFF
$1FFF
$000