- 您现在的位置：买卖IC网 > PDF目录69027 > MC68HC05SR3FB (FREESCALE SEMICONDUCTOR INC) 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP44 PDF资料下载
参数资料
| 型号： | MC68HC05SR3FB |
| 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, PQFP44 |
| 封装： | QFP-44 |
| 文件页数： | 63/96页 |
| 文件大小： | 3143K |
| 代理商： | MC68HC05SR3FB |
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页当前第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
Freescale
8-12
MC68HC05SR3
CPU CORE AND INSTRUCTION SET
8
8.3.4
Extended
In the extended addressing mode, the effective address of the argument is contained in the two
bytes following the opcode byte. Instructions with extended addressing mode are capable of
referencing arguments anywhere in memory with a single three-byte instruction. When using the
Freescale assembler, the user need not specify whether an instruction uses direct or extended
addressing. The assembler automatically selects the short form of the instruction.
EA = (PC+1):(PC+2); PC
← PC+3
Address bus high
← (PC+1); Address bus low ← (PC+2)
8.3.5
Indexed, no offset
In the indexed, no offset addressing mode, the effective address of the argument is contained in
the 8-bit index register. This addressing mode can access the first 256 memory locations. These
instructions are only one byte long. This mode is often used to move a pointer through a table or
to hold the address of a frequently referenced RAM or I/O location.
EA = X; PC
← PC+1
Address bus high
← 0; Address bus low ← X
8.3.6
Indexed, 8-bit offset
In the indexed, 8-bit offset addressing mode, the effective address is the sum of the contents of
the unsigned 8-bit index register and the unsigned byte following the opcode. Therefore the
operand can be located anywhere within the lowest 511 memory locations. This addressing mode
is useful for selecting the mth element in an n element table.
EA = X+(PC+1); PC
← PC+2
Address bus high
← K; Address bus low ← X+(PC+1)
where K = the carry from the addition of X and (PC+1)
8.3.7
Indexed, 16-bit offset
In the indexed, 16-bit offset addressing mode, the effective address is the sum of the contents of
the unsigned 8-bit index register and the two unsigned bytes following the opcode. This address
mode can be used in a manner similar to indexed, 8-bit offset except that this three-byte instruction
allows tables to be anywhere in memory. As with direct and extended addressing, the Freescale
assembler determines the shortest form of indexed addressing.
EA = X+[(PC+1):(PC+2)]; PC
← PC+3
Address bus high
← (PC+1)+K; Address bus low ← X+(PC+2)
where K = the carry from the addition of X and (PC+2)
TPG
64
05SR3.Book Page 12 Thursday, August 4, 2005 1:08 PM
相关PDF资料 |
PDF描述 |
|---|---|
| MC68HC05SR3CFB | 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP44 |
| MC68HC05T7B | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56 |
| MC68HC05V12CFNR2 | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC68 |
| MC68HC08AS20FNR2 | 8-BIT, MROM, MICROCONTROLLER, PQCC52 |
| MC68HC08AS20VFNR2 | 8-BIT, MROM, MICROCONTROLLER, PQCC52 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MC68HC05T16 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit |
| MC68HC05V12 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontreller Unit |
| MC68HC05V12CFN | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:General Release Specification |
| MC68HC05X16 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor HCMOS) microcontroller unit |
发布紧急采购，3分钟左右您将得到回复。