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參數資料
| 型號： | MCIMX27LMOP4AR2 |
| 廠商： | Freescale Semiconductor |
| 文件頁數： | 70/152頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MPU I.MX27 IN 19X19 473MAPBGA |
| 標準包裝： | 750 |
| 系列： | i.MX27 |
| 核心處理器： | ARM9 |
| 芯體尺寸： | 32-位 |
| 速度： | 400MHz |
| 連通性： | 1 線，CAN，EBI/EMI，以太網，I²C，MMC，智能卡，SPI，SSI，UART/USART，USB OTG |
| 外圍設備： | DMA，LCD，POR，PWM，WDT |
| 程序存儲器類型： | ROMless |
| RAM 容量： | 45K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.38 V ~ 1.52 V |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 473-LFBGA |
| 包裝： | 帶卷 (TR) |
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i.MX27 and i.MX27L Data Sheet, Rev. 1.8
24
Freescale Semiconductor
Functional Description and Application Information
Bypass mode to route Host Port 1 signals to OTG I/O port
High Speed /Full Speed/Low Speed Host Only core (Host 2)
Full Speed/Low Speed interface for Serial transceiver
TLL function for direct connection to USB peripheral in FS/LS (serial) operation
High-speed OTG core
The USB module has two main modes of operation: Normal mode and Bypass mode. Furthermore, the
USB interfaces can be configured for high-speed operation (480 Mbps) and/or full/low speed operation
(12/1.5 Mbps). In Normal mode, each USB core controls its corresponding port. In additional to th4e
major operational modes, each port can work in one or more modes, as follows:
PHY mode
In PHY mode, an external serial transceiver is connected to the port. This is used
for off-board USB connections.
TLL mode
In TLL mode, internal logic is enabled to emulate the functionality of two
back-to-back connected transceivers. This mode is typically used for on-board
USB connections to USB-capable peripherals.
Host Port 2 supports ULPI and Serial Transceivers. The OTG port requires a transceiver and is intended
for off-board USB connections.
Serial Interface mode
In serial mode, a serial OTG transceiver must be connected. The port does not
support dedicated signals for OTG signaling. Instead, a transceiver with built-in
OTG registers must be used. Typically, the transceiver registers are accessible
over an I2C or SPI interface.
ULPI mode
In this mode, a ULPI transceiver is connected to the port pins to support
high-speed off board USB connection.
Bypass mode
Bypass mode affects the operation of the OTG port and Host Port 1. This mode is
only available when a serial transceiver is used on the OTG port, and the
peripheral device on Port 1 is using a TLL connection. Bypass mode is activated
by setting the bypass bit in the USBCONTROL register. In this mode, the USB
OTG port connections are internally routed to the USB Host 1 port, such that the
transceiver on the OTG port connects to a peripheral USB device on Host Port 1.
The OTG core and the Host 1 core are disconnected from their ports when bypass
is active.
Low Power mode
Each of the three USB cores has an associated power control module that is
controlled by the USB core and clocked on a 32-kHz clock. When a USB bus is
idle, the transceiver can be placed in low-power mode (suspend), after which the
clocks to the USB core can be stopped. The 32-kHz low power clock must remain
active as it is needed for walk-up detection.
2.3.37
Watchdog Timer Module (WDOG)
The Watchdog Timer module (WDOG) protects against system failures by providing a method of escaping
from unexpected events or programming errors. Once the WDOG module is activated, it must be serviced
by software on a periodic basis. If servicing does not take place, the timer times out. Upon a time-out, the
WDOG Timer module either asserts the wdog signal or a system reset signal wdog_rst, depending on
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MCIMX27LOVP4A | 制造商:Freescale Semiconductor 功能描述: |
| MCIMX27LPDK | 功能描述:開發(fā)板和工具包 - ARM MCIMX27 PDK For LINUX RoHS:否 制造商:Arduino 產品: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 |
| MCIMX27LV0P4A | 制造商:Freescale Semiconductor 功能描述: |
| MCIMX27LVJP4A | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Multimedia Applications Processor |
| MCIMX27LVOP4A | 功能描述:處理器 - 專門應用 LOW END I.MX27 RoHS:否 制造商:Freescale Semiconductor 類型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數據總線寬度:32 bit 最大時鐘頻率:1 GHz 指令/數據緩存: 數據 RAM 大小:128 KB 數據 ROM 大小: 工作電源電壓: 最大工作溫度:+ 95 C 安裝風格:SMD/SMT 封裝 / 箱體:MAPBGA-432 |
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