參數(shù)資料
型號: MC68HSC05C12ACP
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 4.1 MHz, MICROCONTROLLER, PDIP40
封裝: PLASTIC, DIP-40
文件頁數(shù): 156/156頁
文件大?。?/td> 3848K
代理商: MC68HSC05C12ACP
Instruction Set
Instruction Types
MC68HC05C12A Rev. 3.0
General Release Specification
Instruction Set
NON-DISCLOSURE
AGREEMENT
REQUIRED
12.3.8 Relative
Relative addressing is only for branch instructions. If the branch
condition is true, the CPU finds the effective branch destination by
adding the signed byte following the opcode to the contents of the
program counter. If the branch condition is not true, the CPU goes to the
next instruction. The offset is a signed, two’s complement byte that gives
a branching range of –128 to +127 bytes from the address of the next
location after the branch instruction.
When using the Motorola assembler, the programmer does not need to
calculate the offset, because the assembler determines the proper offset
and verifies that it is within the span of the branch.
12.4 Instruction Types
The MCU instructions fall into the following five categories:
Register/Memory instructions
Read-Modify-Write instructions
Jump/Branch instructions
Bit Manipulation instructions
Control instructions
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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