MC68EC000EI12 Freescale Semiconductor, MC68EC000EI12 Datasheet - Page 385

• 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: -

FMOVECR
Operation:
Assembler
Syntax:
Attributes:
Description: Fetches an extended-precision constant from the floating- point coprocessor
Floating-Point Status Register:
Instruction Format:
MOTOROLA
15
1
0
on-chip ROM, rounds the mantissa to the precision specified in the floating-point
control register mode control byte, and stores it in the destination floating-point data
register. The constant is specified by a predefined offset into the constant ROM. The
values of the constants contained in the ROM are shown in the offset table at the end
of this description.
Condition Codes:
Quotient Byte:
Exception Byte:
Accrued Exception Byte:
14
1
1
13
1
0
12
1
1
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
ROM Constant
FMOVECR.X
Format = (Extended)
11
1
COPROCESSOR
10
ID
1
Move Constant ROM
(MC6888X, M68040FPSP)
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.
9
DESTINATION
# < ccc > ,FPn
REGISTER
FPn
8
0
Cleared
Cleared
Cleared
Cleared
Cleared
Cleared
Refer to inexact result in the appropriate
user’s manual.
Cleared
7
0
6
0
5
0
4
0
ROM OFFSET
Floating Point Instructions
FMOVECR
3
0
2
0
1
0
5-83
0
0