MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 88

• Manufacturer Part Number: MC68EC000EI20
• Description: IC MPU 32BIT 20MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC000EI20

• Processor Type: M680x0 32-Bit
• Speed: 20MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

3.2 INTEGER UNIT CONDITION CODE COMPUTATION
Many integer instructions affect the CCR to indicate the instruction,s results. Program and
system control instructions also use certain combinations of these bits to control program
and system flow. The condition codes meet consistency criteria across instructions, uses,
and instances. They also meet the criteria of meaningful results, where no change occurs
unless it provides useful information. Refer to Section 1 Introduction for details concerning
the CCR.
Table 3-18 lists the integer condition code computations for instructions and Table 3-19 lists
the condition names, encodings, and tests for the conditional branch and set instructions.
The test associated with each condition is a logical formula using the current states of the
condition codes. If this formula evaluates to one, the condition is true. If the formula
evaluates to zero, the condition is false. For example, the T condition is always true, and the
EQ condition is true only if the Z-bit condition code is currently true.
MOTOROLA
Instruction
FGETMAN
FETOXM1
FGETEXP
FCOSH
FINTRZ
FACOS
FETOX
FATAN
FASIN
FCOS
FABS
FINT
Absolute Value
Arc Cosine
Arc Sine
Hyperbolic Art Tangent
Cosine
Hyperbolic Cosine
e
e
Extract Exponent
Extract Mantissa
Extract Integer Part
Extract Integer Part, Rounded-to-Zero
x
x –
1
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
Table 3-17. Monadic Floating-Point Operations
Operation
Instruction
FTWOTOX
FLOGNP1
FTENTOX
FLOG10
FLOGN
FSQRT
FLOG2
FTANH
FSINH
FNEG
FTAN
FSIN
In(x)
In(x + 1)
Log
Log
Negate
Sine
Hyperbolic Sine
Square Root
Tangent
Hyperbolic Tangent
10
2
x
x
10
2
(x)
(x)
Instruction Set Summary
Operation
3-17