MC68EC000EI16 Freescale Semiconductor, MC68EC000EI16 Datasheet - Page 274

• Manufacturer Part Number: MC68EC000EI16
• Description: IC MPU 32BIT 16MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC000EI16

• Processor Type: M680x0 32-Bit
• Speed: 16MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

Integer Instructions
SBCD
Operation:
Assembler
Syntax:
Attributes:
Description: Subtracts the source operand and the extend bit from the destination operand
Condition Codes:
4-170
and stores the result in the destination location. The subtraction is performed using
binary-coded decimal arithmetic; the operands are packed binary-coded decimal
numbers. The instruction has two modes:
This operation 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 borrow (decimal) is generated; cleared otherwise.
1. Data register to data register—the data registers specified in the instruction con-
2. Memory to memory—the address registers specified in the instruction access
X
tain the operands.
the operands from memory using the predecrement addressing mode.
Normally the Z condition code bit is set via programming before
the start of an operation. This allows successful tests for zero
results upon completion of multiple-precision operations.
N
U
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
Destination10 – Source10 – X
SBCD Dx,Dy
SBCD – (Ax), – (Ay)
Size = (Byte)
Z
Subtract Decimal with Extend
V
U
C
(M68000 Family)
NOTE
Destination
SBCD
MOTOROLA