![Microchip Technology dsPIC30F6010 Скачать руководство пользователя страница 33](http://html1.mh-extra.com/html/microchip-technology/dspic30f6010/dspic30f6010_datasheet_1785760033.webp)
2004 Microchip Technology Inc.
Advance Information
DS70119B-page 31
dsPIC30F6010
4.0
ADDRESS GENERATOR UNITS
The dsPIC core contains two independent address
generator units: the X AGU and Y AGU. The Y AGU
supports word sized data reads for the DSP
MAC
class
of instructions only. The dsPIC AGUs support three
types of data addressing:
• Linear Addressing
• Modulo (Circular) Addressing
• Bit-Reversed Addressing
Linear and Modulo Data Addressing modes can be
applied to data space or program space. Bit-Reversed
addressing is only applicable to data space addresses.
4.1
Instruction Addressing Modes
The addressing modes in Table 4-1 form the basis of
the addressing modes optimized to support the specific
features of individual instructions. The addressing
modes provided in the
MAC
class of instructions are
somewhat different from those in the other instruction
types.
TABLE 4-1:
FUNDAMENTAL ADDRESSING MODES SUPPORTED
4.1.1
FILE REGISTER INSTRUCTIONS
Most file register instructions use a 13-bit address field
(f) to directly address data present in the first 8192
bytes of data memory (near data space). Most file
register instructions employ a working register W0,
which is denoted as WREG in these instructions. The
destination is typically either the same file register, or
WREG (with the exception of the
MUL
instruction),
which writes the result to a register or register pair. The
MOV
instruction allows additional flexibility and can
access the entire data space during file register
operation.
4.1.2
MCU INSTRUCTIONS
The three-operand MCU instructions are of the form:
Operand 3 = Operand 1 <function> Operand 2
where Operand 1 is always a working register (i.e., the
addressing mode can only be register direct), which is
referred to as Wb. Operand 2 can be a W register,
fetched from data memory, or a 5-bit literal. The result
location can be either a W register or an address
location. The following addressing modes are
supported by MCU instructions:
• Register Direct
• Register Indirect
• Register Indirect Post-modified
• Register Indirect Pre-modified
• 5-bit or 10-bit Literal
Addressing Mode
Description
File Register Direct
The address of the file register is specified explicitly.
Register Direct
The contents of a register are accessed directly.
Register Indirect
The contents of Wn forms the EA.
Register Indirect Post-modified
The contents of Wn forms the EA. Wn is post-modified (incremented or
decremented) by a constant value.
Register Indirect Pre-modified
Wn is pre-modified (incremented or decremented) by a signed constant value
to form the EA.
Register Indirect with Register Offset The sum of Wn and Wb forms the EA.
Register Indirect with Literal Offset
The sum of Wn and a literal forms the EA.
Note:
Not all instructions support all the address-
ing modes given above. Individual
instructions may support different subsets
of these addressing modes.
Содержание dsPIC30F6010
Страница 12: ...dsPIC30F6010 DS70119B page 10 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 32: ...dsPIC30F6010 DS70119B page 30 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 38: ...dsPIC30F6010 DS70119B page 36 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 50: ...dsPIC30F6010 DS70119B page 48 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 68: ...dsPIC30F6010 DS70119B page 66 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 72: ...dsPIC30F6010 DS70119B page 70 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 76: ...dsPIC30F6010 DS70119B page 74 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 86: ...dsPIC30F6010 DS70119B page 84 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 108: ...dsPIC30F6010 DS70119B page 106 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 116: ...dsPIC30F6010 DS70119B page 114 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 128: ...dsPIC30F6010 DS70119B page 126 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 150: ...dsPIC30F6010 DS70119B page 148 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 164: ...dsPIC30F6010 DS70119B page 162 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 208: ...dsPIC30F6010 DS70119B page 206 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 220: ...dsPIC30F6010 DS70119B page 220 Advance Information 2004 Microchip Technology Inc NOTES...
Страница 221: ...2004 Microchip Technology Inc Advance Information DS70119B page 221 dsPIC30F6010 NOTES...