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: 95/100页
文件大小: 1979K
代理商: MC9328MX21DVK
MC9328MX21 Technical Data, Rev. 3.4
94
Freescale Semiconductor
Specifications
The limitation on pixel clock rise time/fall time is not specified. It should be calculated from the hold time
and setup time based on the following assumptions:
Rising-edge latch data
max rise time allowed = (positive duty cycle - hold time)
max fall time allowed = (negative duty cycle - setup time)
In most of case, duty cycle is 50 / 50, therefore
max rise time = (period / 2 - hold time)
max fall time = (period / 2 - setup time)
For example: Given pixel clock period = 10ns, duty cycle = 50 / 50, hold time = 1ns, setup time = 1ns.
positive duty cycle = 10 / 2 = 5ns
≥ max rise time allowed = 5 - 1 = 4ns
negative duty cycle = 10 / 2 = 5ns
≥ max fall time allowed = 5 - 1 = 4ns
Falling-edge latch data
max fall time allowed = (negative duty cycle - hold time)
max rise time allowed = (positive duty cycle - setup time)
3.22.2
Non-Gated Clock Mode
Figure 83 shows the timing diagram when the CMOS sensor output data is configured for negative edge
and the CSI is programmed to received data on the positive edge. Figure 84 shows the timing diagram
when the CMOS sensor output data is configured for positive edge and the CSI is programmed to received
data in negative edge. The parameters for the timing diagrams are listed in Table 46. The formula for
calculating the pixel clock rise and fall time is located in Section 3.22.3, “Calculation of Pixel Clock Rise/
Figure 83. Sensor Output Data on Pixel Clock Falling Edge
CSI Latches Data on Pixel Clock Rising Edge
1
VSYNC
PIXCLK
DATA[7:0]
23
6
45
Valid Data
相关PDF资料
PDF描述
MC9328MX21VH 266 MHz, MICROPROCESSOR, PBGA289
MC9328MX21CVG 266 MHz, MICROPROCESSOR, PBGA289
MC9328MX21CVH 266 MHz, MICROPROCESSOR, PBGA289
MC9328MX21DVH 266 MHz, MICROPROCESSOR, PBGA289
MC9328MX21DVG 266 MHz, MICROPROCESSOR, PBGA289
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