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| 型号： | MCIMX27LVOP4AR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 68/152页 |
| 文件大小： | 0K |
| 描述： | IC LOW END I.MX27 404-MAPBGA |
| 视频文件： | i.MX27 Multimedia Application Processor |
| 标准包装： | 1,000 |
| 系列： | i.MX27 |
| 核心处理器： | ARM9 |
| 芯体尺寸： | 32-位 |
| 速度： | 400MHz |
| 连通性： | 1 线，CAN，EBI/EMI，以太网，I²C，MMC，智能卡，SPI，SSI，UART/USART，USB OTG |
| 外围设备： | DMA，LCD，POR，PWM，WDT |
| 程序存储器类型： | ROMless |
| RAM 容量： | 45K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 1.38 V ~ 1.52 V |
| 振荡器型： | 外部 |
| 工作温度： | -20°C ~ 85°C |
| 封装/外壳： | 404-LFBGA |
| 包装： | 带卷 (TR) |
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i.MX27 and i.MX27L Data Sheet, Rev. 1.8
22
Freescale Semiconductor
Functional Description and Application Information
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
can work in Normal mode operation using frame sync, and in Network mode operation allowing multiple
devices to share the port with as many as thirty-two time slots.
The SSI provides two sets of Transmit and Receive FIFOs. Each of the four FIFOs is 8
× 24 bits. The two
sets of Tx/RX FIFOs can be used in Network mode to provide two independent channels for transmission
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相关代理商/技术参数 |
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| MCIMX27MJP4A | 功能描述:处理器 - 专门应用 Multimedia App Processor RoHS:否 制造商:Freescale Semiconductor 类型:Multimedia Applications 核心:ARM Cortex A9 处理器系列:i.MX6 数据总线宽度:32 bit 最大时钟频率:1 GHz 指令/数据缓存: 数据 RAM 大小:128 KB 数据 ROM 大小: 工作电源电压: 最大工作温度:+ 95 C 安装风格:SMD/SMT 封装 / 箱体:MAPBGA-432 |
| MCIMX27MJP4AR2 | 功能描述:处理器 - 专门应用 Bono 19x19 FG RoHS:否 制造商:Freescale Semiconductor 类型:Multimedia Applications 核心:ARM Cortex A9 处理器系列:i.MX6 数据总线宽度:32 bit 最大时钟频率:1 GHz 指令/数据缓存: 数据 RAM 大小:128 KB 数据 ROM 大小: 工作电源电压: 最大工作温度:+ 95 C 安装风格:SMD/SMT 封装 / 箱体:MAPBGA-432 |
| MCIMX27MOP4A | 功能描述:处理器 - 专门应用 BONO 19X19 FG RoHS:否 制造商:Freescale Semiconductor 类型:Multimedia Applications 核心:ARM Cortex A9 处理器系列:i.MX6 数据总线宽度:32 bit 最大时钟频率:1 GHz 指令/数据缓存: 数据 RAM 大小:128 KB 数据 ROM 大小: 工作电源电压: 最大工作温度:+ 95 C 安装风格:SMD/SMT 封装 / 箱体:MAPBGA-432 |
| MCIMX27MOP4AR2 | 功能描述:处理器 - 专门应用 BONO 19X19 R2 RoHS:否 制造商:Freescale Semiconductor 类型:Multimedia Applications 核心:ARM Cortex A9 处理器系列:i.MX6 数据总线宽度:32 bit 最大时钟频率:1 GHz 指令/数据缓存: 数据 RAM 大小:128 KB 数据 ROM 大小: 工作电源电压: 最大工作温度:+ 95 C 安装风格:SMD/SMT 封装 / 箱体:MAPBGA-432 |
| MCIMX27PDKCPU | 功能描述:开发板和工具包 - ARM I.MX27 PDK CPU BOARD RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
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