DSPIC30F6010A MICROCHIP [Microchip Technology], DSPIC30F6010A Datasheet - Page 35

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DSPIC30F6010A

Manufacturer Part Number
DSPIC30F6010A
Description
High-Performance, 16-bit Digital Signal Controllers
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet

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4.0
The dsPIC DSC core contains two independent
Address Generator Units (AGU): the X AGU and Y
AGU. The Y AGU supports word-sized data reads for
the DSP MAC class of instructions only. The dsPIC DSC
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 mode is only applicable to data space
addresses.
4.1
The addressing modes in
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:
© 2011 Microchip Technology Inc.
File Register Direct
Register Direct
Register Indirect
Register Indirect Post-Modified
Register Indirect Pre-Modified
Register Indirect with Register Offset The sum of Wn and Wb forms the EA.
Register Indirect with Literal Offset
Note:
ADDRESS GENERATOR UNITS
Instruction Addressing Modes
Addressing Mode
This data sheet summarizes features of
this group of dsPIC30F devices and is not
intended to be a complete reference
source. For more information on the CPU,
peripherals, register descriptions and
general device functionality, refer to the
“dsPIC30F Family Reference Manual”
(DS70046). For more information on the
device instruction set and programming,
refer to the “16-bit MCU and DSC
Programmer’s
(DS70157).
FUNDAMENTAL ADDRESSING MODES SUPPORTED
Table 4-1
Reference
form the basis of
The address of the file register is specified explicitly.
The contents of a register are accessed directly.
The contents of Wn forms the EA.
The contents of Wn forms the EA. Wn is post-modified (incremented or
decremented) by a constant value.
Wn is pre-modified (incremented or decremented) by a signed constant value
to form the EA.
The sum of Wn and a literal forms the EA.
Manual”
dsPIC30F6010A/6015
4.1.1
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
The three-operand MCU instructions are of the form:
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.
supported by MCU instructions:
• Register Direct
• Register Indirect
• Register Indirect Post-Modified
• Register Indirect Pre-Modified
• 5-bit or 10-bit Literal
Note:
Operand 3 = Operand 1 <function> Operand 2
Description
The
FILE REGISTER INSTRUCTIONS
MCU INSTRUCTIONS
Not all instructions support all the
addressing modes given above. Individual
instructions may support different subsets
of these addressing modes.
following
addressing
DS70150E-page 35
modes
are

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