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ADMCF328 データシート(PDF) 7 Page - Analog Devices

部品番号 ADMCF328
部品情報  28-Lead Flash Memory DSP Motor Controller with Current Sense
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ホームページ  http://www.analog.com
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ADMCF328 データシート(HTML) 7 Page - Analog Devices

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ADMCF328
–7–
REV. A
GENERAL DESCRIPTION
The ADMCF328 is a low cost, single-chip DSP-based control-
ler, suitable for permanent magnet synchronous motors, and
brushless dc motors. The ADMCF328 integrates a 20 MIPS,
fixed-point DSP core with a complete set of motor control and
system peripherals that permits fast, efficient development of
motor controllers.
The DSP core of the ADMCF328 is the ADSP-2171, which is
completely code-compatible with the ADSP-21xx DSP family
and combines three computational units, data address generators
and a program sequencer. The computational units comprise
an ALU, a multiplier/accumulator (MAC) and a barrel shifter.
The ADSP-2171 adds new instructions for bit manipulation,
multiplication (
× squared), biased rounding and global inter-
rupt masking.
The system peripherals are the power-on reset circuit (POR),
the watchdog timer and a synchronous serial port. The serial
port is configurable, and double buffered, with hardware sup-
port for UART and SCI port emulation.
The ADMCF328 provides 512
× 24-bit program memory RAM,
4K
× 24-bit program memory ROM, 4K × 24-bit program
FLASH memory, and 512
× 16-bit data memory RAM. The
user code will be stored and executed from the flash memory.
The program and data memory RAM can be used for dynamic
data storage or can be loaded through the serial port from an
external device as in other ADMCxxx family parts. The pro-
gram memory ROM contains a monitor function as well as
useful routines for erasing, programming, and verifying the
flash memory.
The motor control peripherals of the ADMCF328 provide a 12-bit
analog data acquisition system with five analog input channels,
one dedicated ISENSE function (combining internal amplification,
sampling and overcurrent PWM shutdown features), and an
internal voltage reference. In addition, a three-phase, 16-bit,
center-based PWM generation unit can be used to produce high
accuracy PWM signals with minimal processor overhead. The
ADMCF328 also contains two auxiliary PWM outputs and
nine lines of digital I/O.
Because the ADMCF328 has a limited number of pins, functions
such as the auxiliary PWM and the serial communication port
are multiplexed with the nine programmable input/output (PIO)
pins. The pin functions can be independently selected to allow
maximum flexibility for different applications.
PM ROM
4K
24
PM RAM
512
24
BUS
EXCHANGE
COMPANDING
CIRCUITRY
DATA
ADDRESS
GENERATOR
#2
DATA
ADDRESS
GENERATOR
#1
14
14
24
16
6
DM RAM
512
16
R BUS
16
DMA BUS
PMA BUS
DMD BUS
PMD BUS
INSTRUCTION
REGISTER
INPUT REGS
OUTPUT REGS
SHIFTER
CONTROL
LOGIC
SERIAL
PORT
RECEIVE REG
TRANSMIT REG
TIMER
INPUT REGS
OUTPUT REGS
MAC
INPUT REGS
OUTPUT REGS
ALU
PROGRAM
SEQUENCER
FLASH
PROGRAM
MEMORY
4K
24
Figure 3. DSP Core Block Diagram


同様の部品番号 - ADMCF328_15

メーカー部品番号データシート部品情報
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同様の説明 - ADMCF328_15

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