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MC68302FC20 Datasheet(PDF) 36 Page - Motorola, Inc

Part No. MC68302FC20
Description  Integrated Multiprotocol Processor User’s Manual
Download  480 Pages
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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MC68302FC20 Datasheet(HTML) 36 Page - Motorola, Inc

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MC68000/MC68008 Core
2-6
MC68302 USER’S MANUAL
MOTOROLA
2.3 ADDRESS SPACES
The M68000 microprocessor operates in one of two privilege states: user or supervisor. The
privilege state determines which operations are legal, which operations are used by the ex-
ternal memory management device to control and translate accesses, and which operations
are used to choose between the SSP and the USP in instruction references. The M68000
address spaces are shown in Table 2-4.
In the M68000 Family, the address spaces are indicated by function code pins. On the
M68000, three function code pins are output from the device on every bus cycle of every
executed instruction. This provides the purpose of each bus cycle to external logic.
Table 2-3. M68000 Instruction Type Variations
Instruction
Type
Variation
Description
ADD
ADD
ADDA
ADDQ
ADDI
ADDX
Add
Add Address
Add Quick
Add Immediate
Add with Extend
AND
AND
ANDI
ANDI to CCR
ANDI to SR
Logical AND
And Immediate
And Immediate to Condition Codes
And Immediate to Status Registers
CMP
CMP
CMPA
CMPM
CMPI
Compare
Compare Addresses
Compare Memory
Compare Immediate
EOR
EOR
EORI
EORI to CCR
EORI to SR
Exclusive OR
Exclusive OR Immediate
Exclusive OR Immediate to Condition Codes
Exclusive OR Immediate to Status Register
MOVE
MOVE
MOVEA
MOVEM
MOVEP
MOVEQ
MOVE from SR
MOVE to SR
MOVE to CCR
MOVE USP
Move Source to Destination
Move Address
Move Multiple Register
Move Peripheral Data
Move Quick
Move from Status Register
Move to Status Register
Move to Condition Codes
Move User Stack Pointer
NEG
NEG
NEGX
Negate
Negate with Extend
OR
OR
ORI
ORI to CCR
ORI to SR
Logical OR
OR Immediate
OR Immediate to Condition Codes
OR Immediate to Status Register
SUB
SUB
SUBA
SUBI
SUBQ
SUBX
Subtract
Subtract Address
Subtract Immediate
Subtract Quick
Subtract with Extend


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