MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 407
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MC68EC000EI20
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
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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
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