参数资料
型号: MC9328MX21SVK
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, MAPBGA-289
文件页数: 48/88页
文件大小: 975K
代理商: MC9328MX21SVK
MC9328MX21S Technical Data, Rev. 1.3
52
Freescale Semiconductor
Specifications
3.17
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 42. USB Timing Diagram for Data Transfer to USB Transceiver (TX)
Table 35. 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
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
i.MX21
Product
Family
相关PDF资料
PDF描述
MK3724GLFTR 73.728 MHz, OTHER CLOCK GENERATOR, PDSO16
MB95F136TSPFV 8-BIT, FLASH, 10 MHz, MICROCONTROLLER, PDSO28
MB95F353EPFT-G-SNE2 MICROCONTROLLER, PDSO24
MB95F353LWQN-G-SNERE1 MICROCONTROLLER, PQCC32
MPC8555CPXAQDX 32-BIT, 1000 MHz, RISC PROCESSOR, PBGA783
相关代理商/技术参数
参数描述
MC9328MX21SVKR2 功能描述:处理器 - 专门应用 DB I.MX21S 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
MC9328MX21SVM 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
MC9328MX21SVMR2 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
MC9328MX21VG 制造商:Rochester Electronics LLC 功能描述:APPLICATIONS PROCESSOR - Bulk 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
MC9328MX21VH 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:i.MX family of microprocessors