MC68EC000EI12 Freescale Semiconductor, MC68EC000EI12 Datasheet - Page 87

• 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: -

Instruction Set Summary
The monadic floating-point instructions provide several arithmetic functions requiring only
one input operand. Unlike the integer counterparts to these functions (e.g., NEG < ea > ), a
source and a destination can be specified. The operation is performed on the source
operand and the result is stored in the destination, which is always a floating-point data
register. When the source is not a floating-point data register, all data formats are supported.
The data format is always extended precision for register-to-register operations. Table 3-16
lists the general format of these instructions, and Table 3-17 lists the available operations.
3-16
NOTE: < mop > is any one of the monadic operation specifiers.
NOTE: < dop > is any one of the dyadic operation specifiers.
Instruction
Instruction
F<mop>
F<dop>
FADD, FSADD, FDADD
FCMP
FDIV, FSDIV, FDDIV
FMOD
FMUL, FSMUL, FDMUL
FREM
FSCALE
FSUB, FSSUB, FDSUB
FSGLDIV, FSGLMUL
Table 3-16. Monadic Floating-Point Operation Format
Table 3-14. Dyadic Floating-Point Operation Format
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
Table 3-15. Dyadic Floating-Point Operations
Operand
Operand
<ea>,FPn
<ea>,FPn
FPm,FPn
Instruction
FPm,FPn
Syntax
Syntax
FPn
B, W, L, S, D, X, P
B, W, L, S, D, X, P
Operand
Operand
Format
Format
X
X
X
Add
Compare
Divide
Modulo Remainder
Multiply
IEEE Remainder
Scale Exponent
Subtract
Single-Precision Divide, Multiply
FPn <Function> Source
Source
FPn
Function
Function
Operation
Operation
Operation
FPn
FPn
FPn
MOTOROLA