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參數(shù)資料
| 型號(hào)： | M68HC001 |
| 廠商： | Motorola, Inc. |
| 英文描述： | 16-/32-Bit Microprocessor(16/32位微處理器) |
| 中文描述： | 16/32位微處理器（16/32位微處理器） |
| 文件頁(yè)數(shù)： | 106/184頁(yè) |
| 文件大?。?/td> | 1006K |
| 代理商： | M68HC001 |
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MOTOROLA
M68000 8-/16-/32-BIT MICROPROCESSORS USER'S MANUAL
7-1
SECTION 7
8-BIT INSTRUCTION EXECUTION TIMES
This section contains listings of the instruction execution times in terms of external clock
(CLK) periods for the MC68008 and MC68HC001/MC68EC000 in 8-bit mode. In this data,
it is assumed that both memory read and write cycles consist of four clock periods. A
longer memory cycle causes the generation of wait states that must be added to the total
instruction times.
The number of bus read and write cycles for each instruction is also included with the
timing data. This data is shown as
n(r/w)
where:
n is the total number of clock periods
r is the number of read cycles
w is the number of write cycles
For example, a timing number shown as 18(3/1) means that 18 clock periods are required
to execute the instruction. Of the 18 clock periods, 12 are used for the three read cycles
(four periods per cycle). Four additional clock periods are used for the single write cycle,
for a total of 16 clock periods. The bus is idle for two clock periods during which the
processor completes the internal operations required for the instruction.
NOTE
The total number of clock periods (n) includes instruction fetch
and all applicable operand fetches and stores.
7.1 OPERAND EFFECTIVE ADDRESS CALCULATION TIMES
Table 7-1 lists the numbers of clock periods required to compute the effective addresses
for instructions. The totals include fetching any extension words, computing the address,
and fetching the memory operand. The total number of clock periods, the number of read
cycles, and the number of write cycles (zero for all effective address calculations) are
shown in the previously described format.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M68EC000 | 16/32 Bit Microprocesso(16/32位微處理器) |
| M68HC16 | 16-Bit Microcontroller(16位微控制器) |
| MAC08BT1 | TRIAC 0.8 AMPERE RMS 200 thru 600 Volts |
| MAC08MT1 | SENSITIVE GATE TRIACS |
| MAC08DT1 | TRIAC 0.8 AMPERE RMS 200 thru 600 Volts |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M68HC05 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| M68HC05_13 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:M68HC05 Microcontrollers |
| M68HC05EVS | 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:Motorola M68HC05 Family Evaluation System |
| M68HC05M68H | 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:HCMOS Microcontroller Unit |
| M68HC08 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Microcontrollers |
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