參數(shù)資料
型號: MC68HC05CL48
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 1.802 MHz, MICROCONTROLLER, PQFP112
封裝: TQFP-112
文件頁數(shù): 17/145頁
文件大?。?/td> 673K
代理商: MC68HC05CL48
June 11, 1997
GENERAL RELEASE SPECIFICATION
MC68HC05CL48
INSTRUCTION SET
MOTOROLA
REV 2.0
14-3
14.1.8 Relative
Relative addressing is only for branch instructions. If the branch condition is true,
the CPU nds the conditional branch destination by adding the signed byte follow-
ing 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 com-
plement 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 veries that it
is within the span of the branch.
14.1.9 Instruction Types
The MCU instructions fall into the following ve categories:
Register/Memory Instructions
Read-Modify-Write Instructions
Jump/Branch Instructions
Bit Manipulation Instructions
Control Instructions
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