参数资料
型号: MC9328MX21DVK
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 266 MHz, MICROPROCESSOR, PBGA289
封装: 14 X 14 MM, 1.41 MM HEIGHT, 0.65 MM PITCH, LEAD FREE, PLASTIC, MAPBGA-289
文件页数: 59/100页
文件大小: 1979K
代理商: MC9328MX21DVK
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
相关PDF资料
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MC9328MX21VH 266 MHz, MICROPROCESSOR, PBGA289
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相关代理商/技术参数
参数描述
MC9328MX21DVK 制造商:Freescale Semiconductor 功能描述:Microprocessor
MC9328MX21DVKR2 功能描述:处理器 - 专门应用 DB I.MX21 PB-FR 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
MC9328MX21DVM 功能描述:处理器 - 专门应用 DB I.MX21 17X17 PB-FR 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
MC9328MX21DVMR2 功能描述:处理器 - 专门应用 DB I.MX21 17X17 PB-FR 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
MC9328MX21S 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:i.MX family of microprocessors 266 MHz