參數(shù)資料
型號(hào)： MCF5407FT220
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 220 MHz, RISC PROCESSOR, PQFP208
封裝： 28 X 28 MM, 0.50 MM PITCH, PLASTIC, FQFP-208
文件頁(yè)數(shù)： 7/35頁(yè)
文件大?。?/td> 441K
代理商： MCF5407FT220
MOTOROLA
MCF5407 Integrated ColdFire Microprocessor Product Brief
15
Programming Model, Addressing Modes, and Instruction Set
1.4.4
Addressing Modes
Operands can be signed or unsigned and are contained in registers, memory, or the instructions themselves.
The operand specifiers and size for each operation are either explicitly encoded in the instruction or
implicitly defined by the instruction’s definition. Table 3 shows MCF5407 data formats.
Table 4 shows notational conventions used throughout this document.
Table 3. MCF5407 Data Formats
Data Format
Size
Bit
1 bit
Byte
8 bits
Word
16 bits
Longword
32 bits
Table 4. Notational Conventions
Instruction
Operand Syntax
Opcode Wildcard
cc
Logical condition (example: NE for not equal)
Register Specifications
An
Any address register n (example: A3 is address register 3)
Ay,Ax
Source and destination address registers, respectively
Dn
Any data register n (example: D5 is data register 5)
Dy,Dx
Source and destination data registers, respectively
Rc
Any control register (example VBR is the vector base register)
Rm
MAC registers (ACC, MAC, MASK)
Rn
Any address or data register
Rw
Destination register w (used for MAC instructions only)
Ry,Rx
Any source and destination registers, respectively
Xi
index register i (can be an address or data register: Ai, Di)
Register Names
ACC
MAC accumulator register
CCR
Condition code register (lower byte of SR)
MACSR
MAC status register
MASK
MAC mask register
PC
Program counter
SR
Status register
Port Name
PSTDDATA
Processor status.debug data port
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