MC68EC000 Motorola, MC68EC000 Datasheet - Page 124

• Manufacturer Part Number: MC68EC000
• Description: Core Processor (SCM 68000)
• Manufacturer: Motorola

6.5 SINGLE OPERAND INSTRUCTION EXECUTION TIMES
Table 6-6 lists the timing data for the single operand instructions. The total number of clock
periods, the number of read cycles, and the number of write cycles are shown in the previ-
ously described format. The number of clock periods, the number of read cycles, and the
number of write cycles, respectively, must be added to those of the effective address calcu-
lation where indicated by a plus sign (+).
MOTOROLA
ADDI
ADDQ
ANDI
CMPI
EORI
MOVEQ
ORI
SUBI
SUBQ
Instruction
Table 6-6. Single Operand Instruction Execution Times
Table 6-5. Immediate Instruction Execution Times
CLR
NBCD
NEG
NEGX
NOT
Scc
TAS
TST
+ Add effective address calculation time.
Instruction
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EC000 CORE PROCESSOR USER’S MANUAL
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Byte, Word
Byte, Word
Byte, Word
Byte, Word
Byte, Word
Byte, Word
Byte, Word
Byte, Word
Long
Long
Long
Long
Long
Long
Long
Long
Long
Size
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Byte, Word
Byte, Word
Byte, Word
Byte, Word
Byte, False
Byte, Word
Byte, True
Long
Long
Long
Long
Long
Size
Byte
Byte
op #, Dn
16(3/0)
14(3/0)
14(3/0)
16(3/0)
16(3/0)
16(3/0)
8(2/0)
4(1/0)
8(1/0)
8(2/0)
8(2/0)
8(2/0)
4(1/0)
8(2/0)
8(2/0)
4(1/0)
8(1/0)
Register
4(1/0)
6(1/0)
6(1/0)
4(1/0)
6(1/0)
4(1/0)
6(1/0)
4(1/0)
6(1/0)
4(1/0)
6(1/0)
4(1/0)
4(1/0)
4(1/0)
op #, An
4(1/0)*
8(1/0)*
8(1/0)
8(1/0)
16-Bit Instruction Execution Times
—
—
—
—
—
—
—
—
—
—
—
—
—
Memory
12(1/2)+
12(1/2)+
12(1/2)+
12(1/2)+
14(2/1)+
8(1/1)+
8(1/1)+
8(1/1)+
8(1/1)+
8(1/1)+
8(1/1)+
8(1/1)+
4(1/0)+
4(1/0)+
12(2/1)+
20(3/2)+
12(1/2)+
12(2/1)+
20(3/2)+
12(3/0)+
12(2/1)+
20(3/2)+
12(2/1)+
20(3/2)+
12(2/1)+
20(3/2)+
12(1/2)+
op #, M
8(1/1)+
8(2/0)+
8(1/1)+
—
6-5