參數(shù)資料
型號(hào)： MC9328MX21VM
廠商： Freescale Semiconductor
文件頁數(shù)： 59/100頁
文件大?。?/td> 0K
描述： IC MCU I.MX21 266MHZ 289-MAPBGA
標(biāo)準(zhǔn)包裝： 90
系列： i.MX21
核心處理器： ARM9
芯體尺寸： 32-位
速度： 266MHz
連通性： 1 線，EBI/EMI，I²C，IrDA，MMC，智能卡，SPI，SSI，UART/USART，USB OTG
外圍設(shè)備： DMA，I²S，LCD，POR，PWM，WDT
輸入/輸出數(shù)： 192
程序存儲(chǔ)器類型： ROMless
電壓 - 電源 (Vcc/Vdd)： 1.45 V ~ 3.3 V
振蕩器型： 外部
工作溫度： 0°C ~ 70°C
封裝/外殼： 289-LFBGA
包裝： 托盤
Specifications
MC9328MX21 Technical Data, Rev. 3.4
Freescale Semiconductor
61
3.18
USB On-The-Go
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, but because isochronous pipes are given a fixed portion of the USB bandwidth at
all times, there is no end-of-transfer.
Figure 50. USB Timing Diagram for Data Transfer to USB Transceiver (TX)
Table 40. USB Timing Parameters for Data Transfer to USB Transceiver (TX)
Ref
No.
Parameter
3.0 V
± 0.3 V
Unit
Minimum
Maximum
1tOEB_TXDP; USBD_OE active to USBD_TXDP low
83.14
83.47
ns
2tOEB_TXDM; USBD_OE active to USBD_TXDM high
81.55
81.98
ns
3tTXDP_OEB; USBD_TXDP high to USBD_OE deactivated
83.54
83.8
ns
4tTXDM_OEB; USBD_TXDM low to USBD_OE deactivated (includes SE0)
248.9
249.13
ns
5tFEOPT; SE0 interval of EOP
160
175
ns
6tPERIOD; Data transfer rate
11.97
12.03
Mb/s
USB_ON
(Output)
USB_OE
(Output)
USB_TXDP
(Output)
USB_TXDM
(Output)
USB_VP
(Input)
USB_VM
(Input)
t OEB_TXDP
t TXDM_OEB
tTXDP_OEB
tFEOPT
tOEB_TXDM
tPERIOD
1
2
3
4
5
6
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC9328MX21VM 制造商:Freescale Semiconductor 功能描述:Microprocessor
MC9328MX21VMR2 功能描述:處理器 - 專門應(yīng)用 DB I.MX21 17X17 PB-FR 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(shí)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
MC9328MXL 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MX Family of applications processors
MC9328MXL/D 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:i.MX Integrated Portable System Processor
MC9328MXL_06 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MX Family of applications processors
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