MC68EC000EI16 Freescale Semiconductor, MC68EC000EI16 Datasheet - Page 185

• 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: -

CMPM
Operation:
Assembler
Syntax:
Attributes:
Description: Subtracts the source operand from the destination operand and sets the
Condition Codes:
Instruction Format:
Instruction Fields:
MOTOROLA
15
1
Register Ax field—(always the destination) Specifies an address register in the
condition codes according to the results; the destination location is not changed. The
operands are always addressed with the postincrement addressing mode, using the
address registers specified in the instruction. The size of the operation may be
specified as byte, word, or long.
Size field—Specifies the size of the operation.
Register Ay field—(always the source) Specifies an address register in the
X — Not affected.
N — Set if the result is negative; cleared otherwise.
Z — Set if the result is zero; cleared otherwise.
V — Set if an overflow is generated; cleared otherwise.
C — Set if a borrow is generated; cleared otherwise.
00 — Byte operation
01 — Word operation
10 — Long operation
14
0
—
X
postincrement addressing mode.
postincrement addressing mode.
13
1
N
12
1
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
Destination – Source
CMPM (Ay) + ,(Ax) +
Size = (Byte, Word, Long)
Z
11
V
REGISTER Ax
10
C
Compare Memory
9
(M68000 Family)
8
1
cc
7
SIZE
6
5
0
4
0
3
1
Integer Instructions
2
CMPM
REGISTER Ay
1
4-81
0