參數(shù)資料
型號(hào)： ADMCF340
廠商： Analog Devices, Inc.
英文描述： DashDSPTM 64-Lead Flash Mixed-Signal DSP with Enhanced Analog Front End
中文描述： DashDSPTM 64無鉛閃存混合信號(hào)增強(qiáng)的DSP與模擬前端
文件頁數(shù)： 8/40頁
文件大?。?/td> 415K
代理商： ADMCF340
REV. 0
ADMCF340
–8–
PM ROM
4K 24
PM RAM
512 24
BUS
EXCHANGE
16
COMPANDING
CIRCUITRY
DATA
ADDRESS
GENERATOR
#2
DATA
ADDRESS
GENERATOR
#1
14
14
24
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
GENERAL DESCRIPTION
The ADMCF340 is a low cost, single-chip DSP-based controller
suitable for permanent magnet synchronous, ac induction, switched
reluctance, and brushless dc motors. The ADMCF340 integrates
a 20 MHz, fixed-point DSP core with a complete set of motor control
and system peripherals that permit fast, efficient development of
motor controllers.
The DSP core of the ADMCF340 is completely code compatible
with the ADSP-21xx DSP family and combines three computa-
tional units, data address generators, and a program sequencer.
The computational units comprise an ALU, a multiplier/accumu-
lator (MAC), and a barrel shifter. There are special instructions
for bit manipulation, multiplication (x squared), biased rounding,
and global interrupt masking. The system peripherals are the
power-on reset circuit (POR), the watchdog timer, and two
synchronous serial ports. The serial ports are configurable,
and double buffered, with hardware support for UART, SCI,
and SPI port emulation. The ADMCF340 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 ADMCxx family
parts. The program 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 ADMCF340 provide a 12-bit
analog data acquisition system with 13 analog input channels,
three dedicated I
SENSE
functions (combining internal amplifi-
cation, 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
ADMCF340 also contains two 16-bit auxiliary PWM timers
and 25 lines of programmable digital I/O.
Several functions such as the auxiliary PWM and the serial com-
munication ports are multiplexed with the nine PORT A (9, PIO)
programmable input/output (PIO) pins. The other 16 pro-
grammable digital I/O are dedicated. The pin functions can
be independently selected to allow maximum flexibility for
different applications.
(continued from page 1)
External
PWMTRIP
Pin
Switched Reluctance Motor Mode Selection Pin
PWM Polarity Selection Pin
Integrated 13-Channel ADC Subsystem
Three Bipolar I
SENSE
Inputs with Programmable
Sample and Hold Amplifier and Overcurrent
Protection (Usable as Three Dedicated Analog Inputs)
Three Simultaneous Converting Voltage Inputs
Seven Muxed Auxiliary Analog Inputs
Internal Voltage Reference (2.5 V)
Acquisition Synchronized to PWM Switching
Frequency
25-Pin Digital I/O Port
Bit Configurable as Input or Output
Change of State Interrupt Support
Two 16-Bit Auxiliary PWM Timers
Synthesized Analog Output
Programmable Frequency
0% to 100% Duty Cycle
Two Programmable Operation Modes
Independent Mode/Offset Mode
相關(guān)PDF資料
PDF描述
ADMCF340BST DashDSPTM 64-Lead Flash Mixed-Signal DSP with Enhanced Analog Front End
ADMCF340-EVALKIT Circular Connector; No. of Contacts:7; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:10; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:10-99 RoHS Compliant: No
ADMCF341 DashDSP⑩ 28-Lead Flash Mixed-Signal DSP with Enhanced Analog Front End
ADMCF341BR DashDSP⑩ 28-Lead Flash Mixed-Signal DSP with Enhanced Analog Front End
ADMCF341-EVALKIT DashDSP⑩ 28-Lead Flash Mixed-Signal DSP with Enhanced Analog Front End
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADMCF340BST 制造商:AD 制造商全稱:Analog Devices 功能描述:DashDSPTM 64-Lead Flash Mixed-Signal DSP with Enhanced Analog Front End
ADMCF340-EVALKIT 制造商:AD 制造商全稱:Analog Devices 功能描述:DashDSPTM 64-Lead Flash Mixed-Signal DSP with Enhanced Analog Front End
ADMCF340XSTB 制造商:Analog Devices 功能描述:
ADMCF341 制造商:AD 制造商全稱:Analog Devices 功能描述:DashDSP⑩ 28-Lead Flash Mixed-Signal DSP with Enhanced Analog Front End
ADMCF341BR 制造商:Analog Devices 功能描述:DSP Fixed-Point/Floating-Point 16-Bit 20MHz 20MIPS 28-Pin SOIC W T/R
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