MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 245
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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
-
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
MC68EC000EI20
Manufacturer:
FREESCALE
Quantity:
772
Company:
Part Number:
MC68EC000EI20
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Part Number:
MC68EC000EI20R
Manufacturer:
Freescale Semiconductor
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NBCD
Operation:
Assembler
Syntax:
Attributes:
Description: Subtracts the destination operand and the extend bit from zero. The operation
Condition Codes:
MOTOROLA
is performed using binary-coded decimal arithmetic. The packed binary-coded decimal
result is saved in the destination location. This instruction produces the tens
complement of the destination if the extend bit is zero or the nines complement if the
extend bit is one. This is a byte operation only.
X — Set the same as the carry bit.
N — Undefined.
Z — Cleared if the result is nonzero; unchanged otherwise.
V — Undefined.
C — Set if a decimal borrow occurs; cleared otherwise.
X
Normally the Z condition code bit is set via programming before
the start of the operation. This allows successful tests for zero
results upon completion of multiple-precision operations.
N
U
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
0 – Destination
NBCD < ea >
Size = (Byte)
Z
U
V
Negate Decimal with Extend
C
10
(M68000 Family)
– X
NOTE
Destination
Integer Instructions
NBCD
4-141
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