- 您现在的位置：买卖IC网 > PDF目录69027 > MC68HC11D0CP2 (FREESCALE SEMICONDUCTOR INC) 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDIP40 PDF资料下载
参数资料
| 型号： | MC68HC11D0CP2 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | PLASTIC, DIP-40 |
| 文件页数： | 45/124页 |
| 文件大小： | 1481K |
| 代理商： | MC68HC11D0CP2 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页当前第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页
MC68HC11D3
CENTRAL PROCESSING UNIT
MOTOROLA
TECHNICAL DATA
3-7
to proceed. The effective address can be specified within an instruction, or it can be
calculated.
3.4.1 Immediate
In the immediate addressing mode an argument is contained in the byte(s) immediate-
ly following the opcode. The number of bytes following the opcode matches the size
of the register or memory location being operated on. There are two-, three-, and four-
(if prebyte is required) byte immediate instructions. The effective address is the ad-
dress of the byte following the instruction.
3.4.2 Direct
In the direct addressing mode, the low-order byte of the operand address is contained
in a single byte following the opcode, and the high-order byte of the address is as-
sumed to be $00. Addresses $00–$FF are thus accessed directly, using two-byte in-
structions. Execution time is reduced by eliminating the additional memory access
required for the high-order address byte. In most applications, this 256-byte area is re-
served for frequently referenced data. In M68HC11 MCUs, the memory map can be
configured for combinations of internal registers, RAM or external memory to occupy
these addresses.
3.4.2.1 Extended
In the extended addressing mode, the effective address of the argument is contained
in two bytes following the opcode byte. These are three-byte instructions (or four-byte
instructions if a prebyte is required). One or two bytes are needed for the opcode and
two for the effective address.
3.4.2.2 Indexed
In the indexed addressing mode, an 8-bit unsigned offset contained in the instruction
is added to the value contained in an index register (IX or IY) — the sum is the effective
address. This addressing mode allows referencing any memory location in the 64
Kbyte address space. These are from two- to five-byte instructions, depending on
whether or not a prebyte is required.
3.4.2.3 Inherent
In the inherent addressing mode, all the information necessary to execute the instruc-
tion is contained in the opcode. Operations that use only the index registers or accu-
mulators, as well as control instructions with no arguments, are included in this
addressing mode. These are one- or two-byte instructions.
3.4.2.4 Relative
The relative addressing mode is used only for branch instructions. If the branch con-
dition is true, an 8-bit signed offset included in the instruction is added to the contents
of the program counter to form the effective branch address. Otherwise, control pro-
ceeds to the next instruction. These are usually two-byte instructions.
相关PDF资料 |
PDF描述 |
|---|---|
| MC68HC11D0CP | 8-BIT, MICROCONTROLLER, PDIP40 |
| MC68HC11L6CFU1 | 8-BIT, OTPROM, 1 MHz, MICROCONTROLLER, PQFP64 |
| MC68HC16S2CPU25 | 16-BIT, 25.17 MHz, MICROCONTROLLER, PQFP100 |
| MC16S2CPU20B1 | 16-BIT, 20.97 MHz, MICROCONTROLLER, PQFP100 |
| MC68HC16X1CTH | 16-BIT, MROM, 16.78 MHz, MICROCONTROLLER, PQFP120 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC68HC11D0CP3 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| MC68HC11D0FB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| MC68HC11D0FN | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| MC68HC11D0FNR2 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| MC68HC11D0P | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
发布紧急采购，3分钟左右您将得到回复。