MC68EC040RC25 Freescale Semiconductor, MC68EC040RC25 Datasheet - Page 326
MC68EC040RC25
Manufacturer Part Number
MC68EC040RC25
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68EC040RC25.pdf
(442 pages)
Specifications of MC68EC040RC25
Family Name
M68000
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
25MHz
Instruction Set Architecture
RISC
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Through Hole
Pin Count
179
Package Type
PGA
Lead Free Status / Rohs Status
Supplier Unconfirmed
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10.7.3 Timings in the Floating-Point Unit
Times in parentheses are the total time that the stage uses to execute an instruction even
though the stage can pass data to the next stage earlier. So that 2(3) in the conversion
stage means that the instruction takes two cycles to execute, but this stage is actually
busy for three cycles.
MOTOROLA
FADD,FSUB
FMUL
FDIV
Instruction
Opclass
0
0
0
0
0
0
2
2
2
2
2
2
2
2
2
0
0
0
0
2
2
2
2
2
2
2
2
0
0
0
0
2
2
2
Size
S,D
S,D
S,D
S,D
S,D
S,D
S,D
S,D
S,D
S,D
S,D
S,D
—
—
—
—
—
—
—
—
—
—
—
—
X
X
X
X
X
X
X
X
X
Freescale Semiconductor, Inc.
For More Information On This Product,
Precision
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Go to: www.freescale.com
M68040 USER’S MANUAL
Norm,Norm
Norm,Norm
Norm,Norm
Norm,Norm
Norm,Norm
Norm,Norm
Norm,Norm
Norm,Norm
Norm,Zero
Norm,Zero
Norm,Zero
Operands
Zero,Zero
Zero,Zero
Zero,Zero
— ,NAN
— ,NAN
— ,NAN
— ,Zero
— ,NAN
— ,Zero
— ,NAN
— ,Zero
— ,NAN
— ,Zero
— ,NAN
— ,Zero
— ,Inf
— ,Inf
— ,Inf
— ,Inf
— ,Inf
— ,Inf
— ,Inf
— ,Inf
Conversion
2(3)
2(3)
2(3)
2(3)
3(4)
3(4)
2(3)
2(3)
3(4)
2(3)
2(3)
4
4
4
4
4
4
5
5
5
4
4
4
4
4
4
5
5
5
4
4
4
4
4
Execution
37.5
37.5
3
3
0
0
0
3
3
0
0
0
3
3
0
0
0
5
0
0
0
5
0
0
0
5
0
0
0
0
0
0
0
0
Normalization
2(3)
2(3)
2(3)
2(3)
2(3)
2(3)
2(3)
2(3)
2(3)
2(3)
2(3)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10-35
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