MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 5
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MC68EC000EI20
Manufacturer Part Number
MC68EC000EI20
Description
IC MPU 32BIT 20MHZ 68-PLCC
Manufacturer
Freescale Semiconductor
Specifications of MC68EC000EI20
Processor Type
M680x0 32-Bit
Speed
20MHz
Voltage
3.3V, 5V
Mounting Type
Surface Mount
Package / Case
68-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
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Quantity
Price
Company:
Part Number:
MC68EC000EI20
Manufacturer:
FREESCALE
Quantity:
772
Company:
Part Number:
MC68EC000EI20
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
MC68EC000EI20R
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Paragraph
Number
3.1.3
3.1.4
3.1.5
3.1.6
3.1.7
3.1.8
3.1.9
3.1.10
3.1.11
3.1.12
3.1.13
3.2
3.3
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.4
3.5
3.5.1
3.5.2
3.6
3.6.1
3.6.2
3.7
8.1
MOTOROLA
Integer Unit Condition Code Computation . . . . . . . . . . . . . . . . . . . . . . 3-17
Instruction Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Floating-Point Instruction Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Floating-Point Computational Accuracy . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Floating-Point Postprocessing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
Instruction Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32
Instruction Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Logical Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Shift and Rotate Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Bit Manipulation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Bit Field Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Binary-Coded Decimal Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Program Control Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
System Control Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Cache Control Instructions (MC68040) . . . . . . . . . . . . . . . . . . . . . . . 3-14
Multiprocessor Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Memory Management Unit (MMU) Instructions. . . . . . . . . . . . . . . . . 3-15
Floating-Point Arithmetic Instructions . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Using the Cas and Cas2 Instructions . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Using the Moves Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Nested Subroutine Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Bit Field Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Pipeline Synchronization with the Nop Instruction. . . . . . . . . . . . . . . 3-21
Intermediate Result . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Rounding the Result . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
Underflow, Round, Overflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28
Conditional Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
TABLE OF CONTENTS ( Continued )
Supervisor (Privileged) Instructions
Instruction Format Summary
Floating Point Instructions
Integer Instructions
CPU32 Instructions
Section 4
Section 5
Section 6
Section 7
Section 8
Title
Number
Page
v
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