MC68EC000EI12 Freescale Semiconductor, MC68EC000EI12 Datasheet - Page 366

• Manufacturer Part Number: MC68EC000EI12
• Description: IC MPU 32BIT 12MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor
• Series: 68K - M680X0r

Specifications of MC68EC000EI12

• Processor Type: M680x0 32-Bit
• Speed: 12MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Core Size: 32 Bit
• Cpu Speed: 12MHz
• Digital Ic Case Style: PLCC
• No. Of Pins: 68
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: 0°C To +70°C
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Clock Frequency: 12MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

Floating Point Instructions
FLOGN
Operation:
Assembler
Syntax:
Attributes:
Description: Converts the source operand to extended precision (if necessary) and
Operation Table:
Floating-Point Status Register:
5-64
calculates the natural logarithm of that number. Stores the result in the destination
floating-point data register. This function is not defined for input values less than zero.
Condition Codes:
Quotient Byte:
Exception Byte:
Accrued Exception Byte:
NOTES:
1. If the source operand is a NAN, refer to 1.6.5 Not-A-Numbers for more information.
2. Sets the OPERR bit in the floating-point status register exception byte.
3. Sets the DZ bit in the floating-point status register exception byte.
DESTINATION
Result
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
Log
FLOGN. < fmt > < ea > ,FPn
FLOGN.X FPm,FPn
FLOGN.X FPn
Format = (Byte, Word, Long, Single, Double, Extended, Packed)
e
+
In(x)
of Source
(MC6888X, M68040FPSP)
In Range
Affected as described in 3.6.2 Conditional Testing.
Not affected.
BSUN
SNAN
OPERR
OVFL
UNFL
DZ
INEX2
INEX1
Affected as described in IEEE exception and trap compati-
bility in the appropriate user’s manual.
FPn
NAN
Log
– +
2
Cleared
Refer to 1.6.5 Not-A-Numbers.
Set if the source operand is < 0; cleared
otherwise.
Cleared
Cleared
Set if the source is
Refer to inexact result in the appropriate
user’s manual.
If < fmt > is packed, refer to inexact result on
decimal input in the appropriate user’s
manual; cleared otherwise.
e
SOURCE
– inf
Zero
3
1
– +
+ inf
0; cleared otherwise
Infinity
FLOGN
MOTOROLA
NAN
–
2