参数资料
型号: MC9328MXLDVP20
厂商: Freescale Semiconductor
文件页数: 82/90页
文件大小: 0K
描述: IC MCU I.MX 200MHZ 225-MAPBGA
标准包装: 160
系列: i.MXL
核心处理器: ARM9
芯体尺寸: 32-位
速度: 200MHz
连通性: EBI/EMI,I²C,MMC/SD,SPI,SSI,UART/USART,USB
外围设备: DMA,I²S,LCD,POR,PWM,WDT
输入/输出数: 97
程序存储器类型: ROMless
电压 - 电源 (Vcc/Vdd): 1.7 V ~ 3.3 V
振荡器型: 外部
工作温度: -30°C ~ 70°C
封装/外壳: 225-LFBGA
包装: 托盘
Functional Description and Application Information
MC9328MXL Technical Data, Rev. 8
Freescale Semiconductor
83
Figure 66. Sensor Output Data on Pixel Clock Rising Edge
CSI Latches Data on Pixel Clock Falling Edge
The limitation on pixel clock rise time / fall time are not specified. It should be calculated from the hold
time and setup time, according to:
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)
Table 36. Non-Gated Clock Mode Parameters
Ref No.
Parameter
Min
Max
Unit
1
csi_vsync to csi_pixclk
180
ns
2
csi_d setup time
1
ns
3
csi_d hold time
1
ns
4
csi_pixclk high time
10.42
ns
5
csi_pixclk low time
10.42
ns
6
csi_pixclk frequency
0
48
MHz
VSYNC
PIXCLK
DATA[7:0]
Valid Data
1
2
3
4
5
6
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