- 您现在的位置：买卖IC网 > PDF目录80563 > MC68HC05RC8DW (MOTOROLA INC) 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28 PDF资料下载
参数资料
| 型号： | MC68HC05RC8DW |
| 厂商： | MOTOROLA INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28 |
| 封装： | SOIC-28 |
| 文件页数： | 110/122页 |
| 文件大小： | 445K |
| 代理商： | MC68HC05RC8DW |
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页当前第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
Instruction Set
General Release Specification
MC68HC05RC16 — Rev. 3.0
88
Instruction Set
MOTOROLA
10.3.5 Indexed, No Offset
Indexed instructions with no offset are 1-byte instructions that can
access data with variable addresses within the first 256 memory
locations. The index register contains the low byte of the effective
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.
10.3.6 Indexed, 8-Bit Offset
Indexed, 8-bit offset instructions are 2-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 effective 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.
10.3.7 Indexed,16-Bit Offset
Indexed, 16-bit offset instructions are 3-byte instructions that can access
data with variable addresses at any location in memory. The CPU adds
the unsigned byte in the index register to the two unsigned bytes
following the opcode. The sum is the effective address of the operand.
The first byte after the opcode is the high byte of the 16-bit offset; the
second byte is the low byte of the offset.
Indexed, 16-bit offset instructions are useful for selecting the kth element
in an n-element table anywhere in memory.
As with direct and extended addressing, the Motorola assembler
determines the shortest form of indexed addressing.
相关PDF资料 |
PDF描述 |
|---|---|
| MC68HC05C5CP | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP40 |
| MB89475PFV | 8-BIT, 12.5 MHz, MICROCONTROLLER, PQFP48 |
| MAH28151FXXXX | 1 CHANNEL(S), 64K bps, SERIAL COMM CONTROLLER, CQFP68 |
| MPC8245LZU300D | 32-BIT, 300 MHz, RISC PROCESSOR, PBGA352 |
| MPC8250AZUMHBB | 32-BIT, 266 MHz, RISC PROCESSOR, PBGA480 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC68HC05RC8FN | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:General Release Specification |
| MC68HC05RC8P | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:General Release Specification |
| MC68HC05SC24 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Secure 8-bit microcomputer with EEPROM |
| MC68HC05SR3 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcontroller Units |
| MC68HC05SU3A | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Fully static chip design featuring the industry standard 8-bit M68HC05 core |
发布紧急采购，3分钟左右您将得到回复。