參數(shù)資料
型號: MC9328MX1VM20R2
廠商: Freescale Semiconductor
文件頁數(shù): 82/100頁
文件大?。?/td> 0K
描述: IC MCU I.MX 200MHZ 256-MAPBGA
標準包裝: 1,000
系列: i.MX1
核心處理器: ARM9
芯體尺寸: 32-位
速度: 200MHz
連通性: EBI/EMI,I²C,MMC,智能卡,SPI,SSI,UART/USART,USB
外圍設備: DMA,I²S,LCD,POR,PWM,WDT
輸入/輸出數(shù): 110
程序存儲器類型: ROMless
電壓 - 電源 (Vcc/Vdd): 1.7 V ~ 3.3 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 256-MAPBGA
包裝: 帶卷 (TR)
Functional Description and Application Information
MC9328MX1 Technical Data, Rev. 7
82
Freescale Semiconductor
Figure 60. SDRAM Self-Refresh Cycle Timing Diagram
4.14
USB Device Port
Four types of data transfer modes exist for the USB module: control transfers, bulk transfers, isochronous
transfers, and interrupt transfers. From the perspective of the USB module, the interrupt transfer type is
identical to the bulk data transfer mode, and no additional hardware is supplied to support it. This section
covers the transfer modes and how they work from the ground up.
Data moves across the USB in packets. Groups of packets are combined to form data transfers. The same
packet transfer mechanism applies to bulk, interrupt, and control transfers. Isochronous data is also moved
in the form of packets, however, because isochronous pipes are given a fixed portion of the USB
bandwidth at all times, there is no end-of-transfer.
SDCLK
CS
CAS
RAS
ADDR
DQ
DQM
BA
WE
CKE
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