MC68030CRC25C Freescale Semiconductor, MC68030CRC25C Datasheet - Page 60

• Manufacturer Part Number: MC68030CRC25C
• Description: IC MPU 32BIT ENHANCED 128-PGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68030CRC25C

• Processor Type: M680x0 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 128-PGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

MOTOROLA
2.4.10 Memory Indirect Preindexed Mode
The processor accesses a long word at this address and adds the outer
displacement to yield the effective address. Both displacements and the index
OUTER DISPLACEMENT: [
EFFECThfE ADDRESS:
NUMBER OF EXTENSION WORDS:
In this mode, the operand and its address are in memory. The processor
calculates an intermediate indirect memory address using the base register
(An), a base displacement (bd), and the index operand (Xn.SIZE * SCALE).
register contents are sign-extended to 32 bits.
When a displacement is omitted or an element is suppressed, its value is
taken as zero in the effective address calculation.
ASSEMBLER SYNTAX:
ADDRESS REGISTER:
BASE DISPLACEMENT: I
SCALE:
In the syntax for this mode, brackets enclose the values used to calculate the
intermediate memory address. All four user-specified values are optional.
Both the base and outer displacements may be null, word, or long word.
GENERATION:
MODE:
INDEX REGISTER:
]
I
31
31
31
An
EA = (bd + An + Xn.SIZE*SCALE) + od
([bd,An.Xn.SIZE*SCALE],od)
110
1,2,3,4,0R5
MC68030 USER'S MANUAL
SIGN
SIGN EXTENDED VALUE
SFGN EXTENDED VALUE
EXTENDED
[
VALUE
SCALE VALUE
~ I
m
q
1
I
I
3~
31
31
31
0
o
0
VALUE AT INDIRECT MEMORY ADDRESS
I
INDIRECT MEMORY ADDRESS
MEMORY ADDRESS
OPERAND
<
POINTSTO
2-15
D
I
2