MC68EC000EI8 Freescale Semiconductor, MC68EC000EI8 Datasheet - Page 53
MC68EC000EI8
Manufacturer Part Number
MC68EC000EI8
Description
IC MPU 32BIT 85MHZ 68-PLCC
Manufacturer
Freescale Semiconductor
Series
M68000r
Specifications of MC68EC000EI8
Processor Type
M680x0 32-Bit
Speed
8MHz
Voltage
3.3V, 5V
Mounting Type
Surface Mount
Package / Case
68-PLCC
Core Size
32 Bit
Cpu Speed
8MHz
Digital Ic Case Style
PLCC
No. Of Pins
68
Supply Voltage Range
3V To 3.6V
Operating Temperature Range
0°C To +70°C
Filter Terminals
SMD
Rohs Compliant
Yes
Clock Frequency
8MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
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Addressing Capabilities
2.2.10 Memory Indirect Preindexed Mode
In this mode, both the operand and its address are in memory. The processor calculates an
intermediate indirect memory address using a base address register, a base displacement,
and the index operand (Xn.SIZE*SCALE). The processor accesses a long word at this
address and adds the outer displacement to yield the effective address. Both displacements
and the index register contents are sign-extended to 32 bits.
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. When omitting a displacement or
suppressing an element, its value is zero in the effective address calculation.
2-12
BASE DISPLACEMENT
INDEX REGISTER
GENERATION:
ASSEMBLER SYNTAX:
EA MODE FIELD:
EA REGISTER FIELD:
NUMBER OF EXTENSION WORDS:
ADDRESS REGISTER
SCALE
INTERMEDIATE ADDRESS
MEMORY
OPERAND POINTER
MEMORY
OUTER DISPLACEMENT
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
31
31
31
EA = (bd + An) + Xn.SIZE*SCALE + od
([bd, An, Xn.SIZE*SCALE], od)
110
REG. NO.
1,2,3,4, OR 5
SIGN-EXTENDED VALUE
SIGN-EXTENDED VALUE
SIGN-EXTENDED VALUE
.
31
31
31
31
SCALE VALUE
SCALE VALUE
VALUE AT INDIRECT MEMORY ADDRESS
0
0
0
CONTENTS
CONTENTS
CONTENTS
OPERAND
POINTS TO
X
POINTS TO
+
+
+
MOTOROLA
0
0
0
0
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