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| 型號： | MC68HC705J2S |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | HCMOS MICROCONTROLLER UNIT |
| 中文描述： | 8-BIT, UVPROM, 2.1 MHz, MICROCONTROLLER, CDIP20 |
| 封裝： | WINDOWED, CERDIP-20 |
| 文件頁數(shù)： | 54/82頁 |
| 文件大?。?/td> | 327K |
| 代理商： | MC68HC705J2S |
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MOTOROLA
10-2
INSTRUCTION SET
MC68HC705J2
Rev. 2
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10.1.3 Direct
Direct instructions can access any of the first 256 memory addresses with two
bytes. The first byte is the opcode, and the second is the low byte of the operand
address. In direct addressing, the CPU automatically uses $00 as the high byte of
the operand address. BRSET and BRCLR are three-byte instructions that use
direct addressing to access the operand and relative addressing to specify a
branch destination.
10.1.4 Extended
Extended instructions use only three bytes to access any address in memory. The
first byte is the opcode; the second and third bytes are the high and low bytes of
the operand address.
When using the Motorola assembler, the programmer does not need to specify
whether an instruction is direct or extended. The assembler automatically selects
the shortest form of the instruction.
10.1.5 Indexed, No Offset
Indexed instructions with no offset are one-byte instructions that can access data
with variable addresses within the first 256 memory locations. The index register
contains the low byte of the conditional address of the operand. The CPU
automatically uses $00 as the high byte, so these instructions can address
locations $0000–$00FF.
Indexed, no offset instructions are often used to move a pointer through a table or
to hold the address of a frequently used RAM or I/O location.
10.1.6 Indexed, 8-Bit Offset
Indexed, 8-bit offset instructions are two-byte instructions that can access data with
variable addresses within the first 511 memory locations. The CPU adds the
unsigned byte in the index register to the unsigned byte following the opcode. The
sum is the conditional address of the operand. These instructions can access
locations $0000–$01FE.
Indexed 8-bit offset instructions are useful for selecting the kth element in an
n-element table. The table can begin anywhere within the first 256 memory
locations and could extend as far as location 510 ($01FE). The k value is typically
in the index register, and the address of the beginning of the table is in the byte
following the opcode.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC705J5ACP | 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| MC68HC705JB4DW | 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| MC68HC705JJ7CDW | 功能描述:IC MCU 8BIT 20-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
| MC68HC705JP7CDW | 功能描述:IC MCU 8BIT 28-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
| MC68HC705JP7CP | 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: |
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