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參數資料
| 型號： | DSM2180F3 |
| 廠商： | 意法半導體 |
| 元件分類： | 數字信號處理 |
| 英文描述： | DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply) |
| 中文描述： | 帝斯曼（數字信號處理器系統(tǒng)內存）模擬器件公司的ADSP - 218X系列（5V電源） |
| 文件頁數： | 4/63頁 |
| 文件大小： | 809K |
| 代理商： | DSM2180F3 |
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DSM2180F3
4/63
SUMMARY DESCRIPTION
These are system memory devices for use with
Digital Signal Processors from the popular Analog
Devices ADSP-218X family. DSM means Digital
signal processor System Memory. A DSM device
brings in-system programmable Flash memory,
programmable logic, and additional I/O to DSP
systems. The result is a simple and flexible two-
chip solution for DSP designs. DSM devices pro-
vide the flexibility of Flash memory and smart
JTAG programming techniques for both manufac-
turing and the field. On-chip integrated memory
decode logic and memory paging logic make it
easy to add large amounts of external Flash mem-
ory to the ADSP-218X family for bootloading upon
power-up and/or overlay memory. The DSP ac-
cesses this Flash memory using either its Byte
DMA (BDMA) interface or as external data overlay
memory (no DMA setup overhead).
Figure 2. PLCC Connections
JTAG In-System Programming (ISP) reduces de-
velopment time, simplifies manufacturing flow,
and lowers the cost of field upgrades. The JTAG
ISP interface eliminates the need for sockets and
pre-programmed memory and logic devices. For
manufacturing, end products may be assembled
with a blank DSM device soldered to the circuit
board and programmed at the end of the manufac-
turing line in 10 to 20 seconds with no involvement
of the DSP. This allows efficient means to test
product and manage inventory by rapidly pro-
gramming test code, then application code as de-
termined by inventory requirements (Just-In Time
inventory). Additionally, JTAG ISP reduces devel-
opment time by turning fast iterations of DSP code
in the lab. Code updates in the field require no dis-
assembly of product. The FlashLINK
TM
JTAG pro-
gramming cable costs $59 USD and plugs into any
PC or note-book parallel port.
Figure 3. PQFP Connections
In addition to ISP Flash memory, DSM devices
add programmable logic (PLD) and up to 16 con-
figurable I/O pins to the DSP system. The state of
each I/O pin can be driven by DSP software or
PLD logic. PLD and I/O configuration are program-
mable by JTAG ISP, just like the Flash memory.
The PLD consists of more than 3000 gates and
has 16 macro cell registers. Common uses for the
PLD include chip selects for external devices (i.e.
UART), state-machines, simple shifters and
counters, keypad and control panel interfaces,
clock dividers, handshake delay, muxes, etc. This
eliminates the need for small external PLDs and
logic devices. Configuration of PLD, I/O, and Flash
memory mapping are easily entered in a point-
and-click environment using the software develop-
ment tool, PSDsoft Express
TM
. This software is
available at no charge from www.psdst.com.
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相關PDF資料 |
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| DSM2180F315K6 | DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply) |
| DSM2180F315T6 | DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply) |
| DSM2180F390K6 | DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply) |
| DSM2180F390T6 | DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply) |
| DSM2180F3V15K6 | DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DSM2180F3_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DSM (Digital Signal Processor System Memory) for analog devices ADSP-218X family (5 V supply) |
| DSM2180F315K6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (3.3V Supply) |
| DSM2180F3-15K6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DSM (Digital Signal Processor System Memory) for analog devices ADSP-218X family (5 V supply) |
| DSM2180F315T6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (3.3V Supply) |
| DSM2180F3-15T6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DSM (Digital Signal Processor System Memory) for analog devices ADSP-218X family (5 V supply) |
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