MC68EC000EI12 Freescale Semiconductor, MC68EC000EI12 Datasheet - Page 407

• 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: -

FREM
Floating-Point Status Register:
Instruction Format:
Instruction Fields:
MOTOROLA
15
1
0
Condition Codes:
Quotient Byte:
Exception Byte:
Accrued Exception Byte:
Coprocessor ID field—Specifies which coprocessor in the system is to execute this
R/M
14
1
instruction. Motorola assemblers default to ID = 1 for the floating-point
coprocessor.
13
0
1
12
1
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
SPECIFIER
SOURCE
11
COPROCESSOR
10
ID
(MC6888X, M68040FPSP)
Affected as described in 3.6.2 Conditional Testing.
Loaded with the sign and least significant seven bits of the
qotient (FPn
exclusive-OR of the sign bits of the source and destination
operands.
BSUN
SNAN
OPERR
OVFL
UNFL
DZ
INEX2
INEX1
Affected as described in IEEE exception and trap compati-
bility in the appropriate user’s manual.
IEEE Remainder
9
DESTINATION
REGISTER
8
0
Cleared
Refer to 1.6.5 Not-A-Numbers.
Set if the source is zero or the destination is
infinity; cleared otherwise.
Cleared
Refer to underflow in the appropriate user’s
manual.
Cleared
Cleared
If < fmt > is packed, refer to inexact result on
decimal input in the appropriate user’s
manual; cleared otherwise.
7
0
Source). The sign of the quotient is the
6
0
0
5
1
MODE
4
0
EFFECTIVE ADDRESS
Floating Point Instructions
3
0
2
1
FREM
REGISTER
1
0
5-105
0
1