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參數(shù)資料
| 型號： | MCIMX27VOP4 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 400 MHz, MICROPROCESSOR, PBGA404 |
| 封裝： | 17 X 17 MM, 0.65 MM PITCH, LEAD FEE, MAPBGA-404 |
| 文件頁數(shù)： | 35/118頁 |
| 文件大?。?/td> | 1159K |
| 代理商： | MCIMX27VOP4 |
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Functional Description and Application Information
i.MX27 Data Sheet, Advance Information, Rev. 0.1
Freescale Semiconductor
Preliminary—Subject to Change Without Notice
23
The Secure Digital Card (SD) is an evolution of MMC technology, with two additional pins in the form
factor. It is specifically designed to meet the security, capacity, performance, and environment
requirements inherent in newly emerging audio and video consumer electronic devices. The physical form
factor, pin assignment, and data transfer protocol are forward-compatible with the MultiMedia Card with
some additions. Under SD, it can be categorized into Memory and I/O. The memory card invokes a
copyright protection mechanism that complies with the security of the SDMI standard, which is faster and
provides the capability for a higher memory capacity. The I/O card provides high-speed data I/O with
low-power consumption for mobile electronic devices.
2.3.33
Smart Liquid Crystal Display Controller Module (SLCDC)
The Smart Liquid Crystal Display Controller (SLCDC) module transfers data from the display memory
buffer to the external display device. Direct Memory Access (DMA) transfers the data transparently with
minimal software intervention. Bus utilization of the DMA is controllable and deterministic.
As cellular phone displays become larger and more colorful, demands on the processor increase. More
CPU power is needed to render and manage the image. The role of the display controller is to reduce the
CPU’s involvement in the transfer of data from memory to the display device so the CPU can concentrate
on image rendering. DMA is used to optimize the transfer. Embedded control information needed by the
display device is automatically read from a second buffer in system memory and inserted into the data
stream at the proper time to completely eliminate the CPU’s role in the transfer.
A typical scenario for a cellular phone display is to have the display image rendered in main system
memory. After the image is complete, the CPU triggers the SLCDC module to transfer the image to the
display device. Image transfer is accomplished by burst DMA, which steals bus cycles from the CPU.
Cycle-stealing behavior is programmable so bus use is kept within predefined bounds. After the transfer
is complete, a maskable interrupt is generated indicating the status. For animated displays, it is suggested
that a two-buffer ping-pong scheme be implemented so that the DMA is fetching data from one buffer
while the next image is rendered into the other.
Several display sizes and types are used in the various products that use the SLCDC. The SLCDC module
has the capability of directly interfacing to the selected display devices. Both serial and parallel interfaces
are supported. The SLCDC module only supports writes to the display controller. SLCDC read operations
from the display controller are not supported.
2.3.34
Synchronous Serial Interface (SSI)
The Synchronous Serial Interface (SSI) is a full-duplex serial port that allows the chip to communicate
with a variety of serial devices. These serial devices can be standard codecs, Digital Signal Processors
(DSPs), microprocessors, peripherals, and popular industry audio codecs that implement the inter-IC
sound bus standard (I2S) and Intel AC97 standard.
The SSI is typically used to transfer samples in a periodic manner. The SSI consists of independent
transmitter and receiver sections with independent clock generation and frame synchronization.
The SSI contains independent (asynchronous) or shared (synchronous) transmit and receive sections with
separate or shared internal/external clocks and frame syncs, operating in Master or Slave mode. The SSI
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCIMX27VOP4A | 功能描述:處理器 - 專門應(yīng)用 I.MX27 REV 2.1 RoHS:否 制造商:Freescale Semiconductor 類型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:1 GHz 指令/數(shù)據(jù)緩存: 數(shù)據(jù) RAM 大小:128 KB 數(shù)據(jù) ROM 大小: 工作電源電壓: 最大工作溫度:+ 95 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MAPBGA-432 |
| MCIMX27VOP4AR2 | 功能描述:處理器 - 專門應(yīng)用 I.MX27 REV 2.1 RoHS:否 制造商:Freescale Semiconductor 類型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:1 GHz 指令/數(shù)據(jù)緩存: 數(shù)據(jù) RAM 大小:128 KB 數(shù)據(jù) ROM 大小: 工作電源電壓: 最大工作溫度:+ 95 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MAPBGA-432 |
| MCIMX27VOP4R2 | 制造商:Freescale Semiconductor 功能描述:MULTIMEDIA PROCESSOR 404-PIN MA-BGA T/R - Tape and Reel |
| MCIMX27WPDK | 功能描述:開發(fā)板和工具包 - ARM MCIMX27 PDK For WINCE RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V |
| MCIMX280CVM4B | 功能描述:處理器 - 專門應(yīng)用 Catskills Rev1.2 RoHS:否 制造商:Freescale Semiconductor 類型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:1 GHz 指令/數(shù)據(jù)緩存: 數(shù)據(jù) RAM 大小:128 KB 數(shù)據(jù) ROM 大小: 工作電源電壓: 最大工作溫度:+ 95 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MAPBGA-432 |
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