參數(shù)資料
型號(hào)： MCF5307FT90B
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(yè)數(shù)： 7/30頁(yè)
文件大?。?/td> 117K
代理商： MCF5307FT90B
MOTOROLA
MCF5307 Product Brief
15
Programming Model, Instruction Set, and Addressing Mode,
Continued
Data Format
Summary
Operands can be signed or unsigned and are contained in registers, memory,
or the instructions themselves. The operand speciers and size for each
operation are either explicitly encoded in the instruction or implicitly dened
by the instruction’s denition. Table 1 summarizes the MCF5307 data
formats.
Table 1: MCF5307
Data Formats
Notational
Conventions
The following tables list the commonly used ColdFire notational conventions.
OPERAND DATA FORMAT
SIZE
Bit
1 Bit
Byte
8 Bits
Word
16 Bits
Longword
32 Bits
REGISTER SPECIFICATION
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
Control Register (example: VBR, CACR)
Rn
Any Address or Data Register n
Ry, Rx
Any source and destination registers, respectively.
Rw
Destination Register w (used on certain MAC instructions only)
Xi
Index Register i (Can be an address or data register: A, Di)
REGISTER NAMES
CCR
Condition Code Register (lower byte of status register)
MACSR
MAC Status Register
PC
Program Counter
Racc
MAC Accumulator Register
Rmask
MAC Mask Register
SR
Status Register
DATA SIZE AND TYPE
<size>
Operand Data Size: Byte (B), Word (W), Longword (L).
B, W, L
Specifies a signed integer data type of 8-bit byte, 16-bit word, or 32-bit longword.
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