Motorola CPU32 Reference Manual page 31

Ell
7
15
I
MSB
BYTE 0
BYTE 2
15
15
6
5
BIT DATA
1 BYTE
=
8 BITS
4
3
BYTE DATA
(8 BITS)
8 7
LSB
I
2
WORD DATAIINSTRUCTION
(16 BITS)
WORD
0
WORD 1
WORD 2
LONG WORD DATA/INSTRUCTION
(32 BITS)
MSB HIGH ORDER
o
BYTE 1
BYTE 3
- LONG WORD 0 - - - - - - - - - - - - - - - -
o
o
o
LOW ORDER LSB
- LONG WORD 1 -
- LONG WORD 2 -
15 12 11
BCD 0
BCD 4
MSD = Most Significant Digit
LSD = Least Significant Digit
15
MSB
t--
ADDRESS 0
BCD 1
BCD5
DECIMAL DATA
2 BCD DIGITS = 1 BYTE
8 7
LSD
ADDRESS
(32 BITS)
HIGH ORDER
LOW ORDER
BCD 2
BCD6
4 3
BCD3
BCD7
-
~~$1----------------
-
°ADDRE$2
MSB = Most Significant Bit
LSB = Least Significant Bit
Figure 2-6. Memory Operand Addressing
o
o
LSB
MOTOROLA
2-8
ARCHITECTURE SUMMARY
CPU32 REFERENCE MANUAL