MC68LC040RC25A Freescale Semiconductor, MC68LC040RC25A Datasheet - Page 268
MC68LC040RC25A
Manufacturer Part Number
MC68LC040RC25A
Description
IC MPU 32BIT 25MHZ 179-PGA
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68EC040FE33A.pdf
(442 pages)
Specifications of MC68LC040RC25A
Processor Type
M680x0 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
179-PGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
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9.7 FLOATING-POINT ARITHMETIC EXCEPTIONS
The following eight user floating-point arithmetic exceptions are listed in order of priority.
The MC68040 generates the first seven exceptions in hardware and the eighth only in
software.
INEX1 exception is the condition that exists when a packed decimal operand cannot be
converted exactly to the extended-precision format in the current rounding mode. Since
9-24
• Branch/Set on Unordered (BSUN)
• Signaling Not-A-Number (SNAN)
• Operand Error (OPERR)
• Overflow (OVFL)
• Underflow (UNFL)
• Divide by Zero (DZ)
• Inexact 2 (INEX2)
• Inexact 1 (INEX1)
DENORMALIZED SINGLE PRECISION
FORMAT IN STATE FRAME
FORMAT IN STATE FRAME
DENORMALIZED DOUBLE PRECISION
Figure 9-9. Format of Denormalized Operand in State Frame
Freescale Semiconductor, Inc.
95
95
S
S
For More Information On This Product,
94
94
EXP
EXP
$0
$0
31 30
S
M68040 USER’S MANUAL
Go to: www.freescale.com
80
80
(a) Single Precision
(b) Double Precision
63 62
S
$0
79
79
23 22
$0
$0
$0
52 51
64
64
63
63
0
0
62
62
FRACTION
40
39
MANTISSA
MANTISSA
MANTISSA
0
$0
11
10
$0
MOTOROLA
0
0
0
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