79367 Slajd5 (118)

MC68000 - ORGANIZACJA PAMIĘCI

	15	14 13 12 11 10	9 8 7 6	5 4 3 2	1 0
AEORESS 1000000		BYTE 000000	WORDO 1	BYTE 000001
5000002		BYTE 000002	WORD 1 i	BYTE 000003
	7		♦ ♦ ♦ ♦ ♦
1FFFFFE		BYTE FFFFFE	WORD 7FFFFF _I_	BYTEFFFFFE

BIT DATA 1 BYTE = 8 BITS

7    6    5    4    3    2    1    0

INTEGER DATA 1 BYTE = 8 BITS

15    13    12    11    10    9    8    7    8    5    4    3    2    1    0

1 LCNGWORD= 32 BITS

15 14	13 12 11	10	9	8 7 6 5 4	3 2	1 0
MSB	LONG WORD 0 -			H13 H ORDER LOW ORDER		LSB
—	LONG WORD 1 -
—	LONG WORD 2 -
15 14	13 12 11	10	ADDRESSES 1 ADDRESS = 32 BITS 9 8 7 6 5 4		3 2	1 0
MSB	ADDRESS 0 -			H13 H ORDER LOW ORDER		LSB
	AuDRcSS i
—	ADDRESS2 -

MSB = MOST SIGNIFICANT BIT LSB= LEAST SIGNIFICANT BIT

DECMAL DATA

2 BINARY-CODED-DECIMAL DIGITS= 1 BYTE

15    14    13    12    11    10    9    8    7    6    5    4    3    2    1 O

^MS° BODO	BCD1 LSD	BCD 2	BCD 3
BOD 4	BCD 5	BCD 6	BCD 7

MSD= MOST SIGNIFICANT DIGIT LSD= LEAST SIGNIFICANT DIGIT