MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 349
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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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FGETEXP
Instruction Format:
Instruction Fields:
MOTOROLA
15
1
0
Coprocessor ID field—Specifies which coprocessor in the system is to execute this
Effective Address field—Determines the addressing mode for external operands.
R/M field—Specifies the source operand address mode.
R/M
If R/M = 0, this field is unused and should be all zeros.
If R/M = 1, this field is encoded with an M68000 family addressing mode as listed in
0 — The operation is register to register.
1 — The operation is < ea > to register.
14
1
the following table:
instruction. Motorola assemblers default to ID = 1 for the floating-point
coprocessor.
13
0
1
*Only if < fmt > is byte, word, long, or single.
Addressing Mode
12
([bd,An,Xn],od)
([bd,An],Xn,od)
1
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
(bd,An,Xn)
(d
SPECIFIER
(d
8
SOURCE
(An) +
– (An)
,An,Xn)
(An)
16
Dn*
An
,An)
11
COPROCESSOR
10
ID
(MC6888X, M68040FPSP)
Mode
000
010
011
100
101
110
110
110
110
—
Get Exponent
9
DESTINATION
REGISTER
reg. number:Dn
reg. number:An
reg. number:An
reg. number:An
reg. number:An
reg. number:An
reg. number:An
reg. number:An
reg. number:An
8
0
Register
—
7
0
6
0
0
Addressing Mode
5
0
([bd,PC,Xn],od)
([bd,PC],Xn,od)
(d
(bd,PC,Xn)
# < data >
(d
(xxx).W
(xxx).L
8
MODE
,PC,Xn)
16
4
1
,PC)
EFFECTIVE ADDRESS
Floating Point Instructions
FGETEXP
3
1
Mode
2
1
111
111
111
111
111
111
111
111
REGISTER
1
1
Register
000
001
100
010
011
011
011
011
5-47
0
0
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