MC68HC000EI20 Freescale Semiconductor, MC68HC000EI20 Datasheet - Page 138

• Manufacturer Part Number: MC68HC000EI20
• Description: IC MPU 16BIT 20MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC000EI20

• 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: -

and read the next 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 following notation applies in Table 9-17:
ADDX
CMPM
SUBX
ABCD
SBCD
*Source and destination ea are (An)+ for CMPM and –(An) for all others.
9.11 MISCELLANEOUS INSTRUCTION EXECUTION TIMES
Table 9-18 lists the timing data for miscellaneous 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 (+).
MOTOROLA
Instruction
Dn
M
— Data register operand
— Memory operand
Byte, Word
Byte, Word
Byte, Word
Table 9-17. Multiprecision Instruction Execution Times
Long
Long
Long
M68000 8-/16-/32-BIT MICROPROCESSORS USER’S MANUAL
Size
Byte
Byte
Freescale Semiconductor, Inc.
For More Information On This Product,
op Dn, Dn
4(1/0)
6(1/0)
6(1/0)
6(1/0)
6(1/0)
4(1/)
—
—
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Nonlooped
18(3/1)
30(5/2)
12(3/0)
20(5/0)
18(3/1)
30(5/2)
18(3/1)
18(3/1)
Valid Count,
Continued
cc False
22(2/1)
32(4/2)
14(2/0)
24(4/0)
22(2/1)
32(4/2)
24(2/1)
24(2/1)
op M, M*
Valid Count,
Loop Mode
cc True
28(4/1)
38(6/2)
20(4/0)
30(6/0)
28(4/1)
38(6/2)
30(4/1)
30(4/1)
Terminated
Expired Count
26(4/1)
36(6/2)
18(4/0)
26(6/0)
26(4/1)
36(6/2)
28(4/1)
28(4/1)
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