MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 74
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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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MOTOROLA
#<xxx> or #<data> Immediate data following the instruction word(s).
IC, DC, IC/DC
{offset:width}
FPm, FPn
MMUSR
B, W, L
SCALE
<fmt>
MSW
LSW
MSB
SIZE
CCR
DFC
FPcr
+ inf
SFC
– inf
LSB
ccc
PC
SR
bd
od
Rc
d
( )
D
[ ]
P
S
X
k
n
Positive Infinity
Operand Data Format: Byte (B), Word (W), Long (L), Single (S), Double (D), Extended (X), or
Packed (P).
Specifies a signed integer data type (twos complement) of byte, word, or long word.
Double-precision real data format (64 bits).
A twos complement signed integer (–64 to +17) specifying a number’s format to be stored in the
packed decimal format.
Packed BCD real data format (96 bits, 12 bytes).
Single-precision real data format (32 bits).
Extended-precision real data format (96 bits, 16 bits unused).
Negative Infinity
Identifies an indirect address in a register.
Identifies an indirect address in memory.
Base Displacement
Index into the MC68881/MC68882 Constant ROM
Displacement Value, n Bits Wide (example: d
Least Significant Bit
Least Significant Word
Most Significant Bit
Most Significant Word
Outer Displacement
A scale factor (1, 2, 4, or 8 for no-word, word, long-word, or quad-word scaling, respectively).
The index register’s size (W for word, L for long word).
Bit field selection.
Condition Code Register (lower byte of status register)
Destination Function Code Register
Any Floating-Point System Control Register (FPCR, FPSR, or FPIAR)
Any Floating-Point Data Register specified as the source or destination, respectively.
Instruction, Data, or Both Caches
MMU Status Register
Program Counter
Any Non Floating-Point Control Register
Source Function Code Register
Status Register
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
Table 3-1. Notational Conventions (Continued)
Subfields and Qualifiers
Data Format And Type
Register Names
16
is a 16-bit displacement).
Instruction Set Summary
3-3
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