Rainbow Electronics ATmega161L - Manual (Page 16)

16
ATmega161(L)
1228C–AVR–08/02
Data Indirect with Post-
increment 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.
Constant Addressing Using
the LPM Instruction 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).
Indirect Program Addressing,
IJMP and ICALL Figure 18. Indirect Program Memory Addressing
Data Space
$0000
$FFFF
X, Y, OR Z - REGISTER
0 15
1
$1FFF
$000
PROGRAM MEMORY
Z-REGISTER
15 1 0
$1FFF
$000
PROGRAM MEMORY
15 0
Z-REGISTER