MC68HC000RC12 Datasheet, PDF (133/189 Pages) Freescale Semiconductor, Inc – 8-/16-/32-Bit Microprocessors User’s Manual

Freescale Semiconductor, Inc.
9.4 IMMEDIATE INSTRUCTION EXECUTION TIMES
The numbers of clock periods shown in Table 9-8 include the times to fetch immediate
operands, perform the operations, store the results, and read the next operation. The total
number of clock periods, the number of read cycles, and the number of write cycles are
shown in the previously 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 calculation where indicated by a plus sign (+).
In Tables 9-8, the following notation applies:
# — Immediate operand
Dn — Data register operand
An — Address register operand
M — Memory operand
Table 9-8. Immediate Instruction Execution Times
Instruction
Size
ADDI
Byte, Word
Long
ADDQ
Byte, Word
Long
ANDI
Byte, Word
Long
CMPI
Byte, Word
Long
EORI
Byte, Word
Long
MOVEQ
Long
ORI
Byte, Word
Long
SUBI
Byte, Word
Long
SUBQ
Byte, Word
Long
+Add effective address calculation time.
*Word only.
op #, Dn
8(2/0)
14(3/0)
4(1/0)
8(1/0)
8(2/0)
14(3/0)
8(2/0)
12(3/0)
8(2/0)
14(3/0)
4(1/0)
8(2/0)
14(3/0)
8(2/0)
14(3/0)
4(1/0)
8(1/0)
op #, An
—
—
4(1/0)*
8(1/1)
—
—
—
—
—
—
—
—
—
—
—
4(1/0)*
8(1/0)
op #, M
12(2/1)+
20(3/2)+
8(1/2)+
12(1/2)+
12(2/1)+
20(3/1)+
8(2/0)+
12(3/0)+
12(2/1)+
20(3/2)+
—
12(2/1)+
20(3/2)+
12(2/1)+
20(3/2)+
8(1/1)+
12(1/2)+
9.5 SINGLE OPERAND INSTRUCTION EXECUTION TIMES
Tables 9-9, 9-10, and 9-11 list 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 previously 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 calculation where indicated by a plus sign (+).
9-6
M68000 8-/16-/32-BIT MICROPROCESSORS USER'S MANUAL
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