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參數(shù)資料
| 型號(hào)： | MC68HC05T7B |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56 |
| 封裝： | SDIP-56 |
| 文件頁(yè)數(shù)： | 56/109頁(yè) |
| 文件大?。?/td> | 9008K |
| 代理商： | MC68HC05T7B |
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Technical Data
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 3.0
46
Central Processor Unit (CPU)
MOTOROLA
Central Processor Unit (CPU)
4.6 CPU Registers
The M68HC05 CPU contains five registers that control and monitor MCU
operation:
Accumulator
Index register
Stack pointer
Program counter
Condition code register
CPU registers are not memory mapped.
4.6.1 Accumulator
The accumulator is a general-purpose 8-bit register. The CPU uses the
accumulator to hold operands and results of ALU operations.
4.6.2 Index Register
In the indexed addressing modes, the CPU uses the byte in the index
register to determine the conditional address of the operand. The index
register also can serve as a temporary storage location or a counter.
Bit 7
6
54
32
1
Bit 0
Read:
Write:
Reset:
Unaffected by reset
Figure 4-2. Accumulator (A)
Bit 7
6
54
32
1
Bit 0
Read:
Write:
Reset:
Unaffected by reset
Figure 4-3. Index Register (X)
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相關(guān)代理商/技術(shù)參數(shù) |
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| MC68HC05V12 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontreller Unit |
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| MC68HC05X16 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor HCMOS) microcontroller unit |
| MC68HC05X32 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor HCMOS) microcontroller unit |
| MC68HC05X4 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit |
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