參數(shù)資料
型號: SPAK5307FT90B
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 90 MHz, RISC PROCESSOR, PQFP208
封裝: 28 X 28 MM, PLASTIC, QFP-208
文件頁數(shù): 9/30頁
文件大?。?/td> 117K
代理商: SPAK5307FT90B
MOTOROLA
MCF5307 Product Brief
17
Addressing Capability Summary, Continued
Effective Addressing
Modes
An instruction’s effective addressing mode can specify the operand in one of
three ways:
1. It can specify the data value directly as an immediate operand
2. It can specify the register containing the operand
3. It can specify the addressing calculation needed to reference the memory
location containing the operand
Each addressing mode has a unique assembler syntax. In addition to the
generalized format where the addressing mode is specied directly in the
instruction, there are some opcodes where the effective address is implicitly
dened by the operation itself. Table 2a summarizes the effective addressing
modes of ColdFire processors; Table 2b shows specic effective addressing
modes for the MOVE instruction; and Table 2c presents addressing variants
used by certain instructions.
Table 2a: ColdFire
Effective Addressing
Modes
Table 2b: Specic
Effective Addressing
Modes for MOVE
Instructions
ADDRESSING MODES
SYNTAX
Register Direct
Data
Address
Dn
An
Register Indirect
Address
Address with Postincrement
Address with Predecrement
Address with Displacement
(An)
(An)+
–(An)
(d16,An)
Address Register Indirect with Scaled Index
8-Bit Displacement
(d8,An,Xi*SF)
Program Counter Indirect
with Displacement
(d16,PC)
Program Counter Indirect with Scaled Index
8-Bit Displacement
(d8,PC,Xi*SF)
Absolute Data Addressing
Short
Long
(xxx).W
(xxx).L
Immediate
#<data>
SOURCE <EA>
DESTINATION <EA>
Dy
All
Ay
All
(Ay)
All
(Ay)+
All
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