MC68EC040RC25 Freescale Semiconductor, MC68EC040RC25 Datasheet - Page 273
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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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exception handler can report. When an operand error occurs, the OPERR bit is set in the
FPSR EXC byte.
9.7.3.1 MASKABLE EXCEPTION CONDITIONS. All conditions apply as listed in Table
9-11, with the exception of the FMOVE to byte, word, or long-word case.
MOTOROLA
a. If the user OPERR exception handler is disabled, an extended-precision
FADD
FDIV
FMOVE to B,W,or L
FMUL
FSQRT
FSUB
FACOS
FASIN
FATANH
FCOS
FGETEXP
FGETMAN
FLOG10
FLOG2
FLOGN
FLOGNP1
FMOD
FMOVE to P
FREM
FSCALE
FSGLDIV
FSGLMUL
FSIN
FSINCOS
FTAN
nonsignaling NAN with all mantissa bits set is stored in the destination floating-point
data register. No exceptions are reported, and instruction execution proceeds
normally.
Instruction
Table 9-11. Possible Operand Errors Exceptions
Freescale Semiconductor, Inc.
(+inf) + (–inf) or (–inf) + (+inf)
0
One operand is 0 and other is +inf.
Source < 0 or inf.
(+inf) – (+inf) or (–inf) – (–inf)
Source is inf, > +1, or < –1
Source is inf, > +1, or < –1
Source is > +1 or < –1
Source is inf
Source is inf
Source is inf
Source is < 0
Source is < 0
Source is < 0
Source is
Floating-point data register is inf or source is 0, other operand is not a NAN
Floating-point data register is inf or source is 0, other operand is not a NAN
Source is inf
0
Source is inf
Source is inf
Source is inf
Integer overflow where the source is nonsignaling NAN or +infinity.
Source exponent > 999 (decimal) or k-Factor > 17
One operand is 0, other operand is inf
For More Information On This Product,
0 or inf
0 or inf
Go to: www.freescale.com
M68040 USER’S MANUAL
1
inf
inf
Nonnative to MC68040
Native to MC68040
Condition Causing Operand Error
9- 29
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