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參數(shù)資料
| 型號： | MPC8308-KIT |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 27/83頁 |
| 文件大?。?/td> | 0K |
| 描述： | KIT EVALUATION FOR MPC830X |
| 標準包裝： | 1 |
| 系列： | PowerQUICC II™ PRO |
| 類型： | MPU |
| 適用于相關產(chǎn)品： | MPC8308 |
| 所含物品： | 板，線纜，CD，電源 |
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MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 3
Freescale Semiconductor
33
High-Speed Serial Interfaces (HSSI)
Figure 24. Differential Measurement Points for Rise and Fall Time
Figure 25. Single-Ended Measurement Points for Rise and Fall Time Matching
The other detailed AC requirements of the SerDes reference clocks is defined by each interface protocol
based on application usage. For detailed information, see the following sections:
Rising edge rate (SD_REF_CLK) to falling edge rate
(SD_REF_CLK) matching
Rise-Fall
Matching
—20
%
1, 4
Notes:
1. Measurement taken from single ended waveform.
2. Measurement taken from differential waveform.
3. Measured from –200 mV to +200 mV on the differential waveform (derived from SD_REF_CLK minus SD_REF_CLK). The
signal must be monotonic through the measurement region for rise and fall time. The 400 mV measurement window is centered
on the differential zero crossing (Figure 24).
4. Matching applies to rising edge rate for SD_REF_CLK and falling edge rate for SD_REF_CLK. It is measured using a 200
mV window centered on the median cross point where SD_REF_CLK rising meets SD_REF_CLK falling. The median cross
point is used to calculate the voltage thresholds the oscilloscope is to use for the edge rate calculations. The Rise Edge Rate
of SD_REF_CLK should be compared to the Fall Edge Rate of SD_REF_CLK, the maximum allowed difference should not
exceed 20% of the slowest edge rate (See Figure 25).
Table 32. SerDes Reference Clock AC Parameters (continued)
At recommended operating conditions with XCOREVDD= 1.0V ± 5%
Parameter
Symbol
Min
Max
Unit
Notes
VIH = +200
VIL = -200 mV
0.0 V
SD_REF_CLK
minus
SD_REF_CLK
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| MPC8308-NSG | 功能描述:開發(fā)板和工具包 - 其他處理器 MPC8308-NSG RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| MPC8308-NSG | 制造商:Freescale Semiconductor 功能描述:MPC8308-NSG*NIC* |
| MPC8308-RDB | 功能描述:開發(fā)板和工具包 - 其他處理器 Refer. Board MPC8308 RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| MPC8308-RDB-PROMO | 制造商:Freescale 功能描述:Motherboards MPC8308 PowerQuicc II DDR2 10Mbps/100Mbps/1000Mbps Linux Kernel |
| MPC8308-SOM | 功能描述:開發(fā)板和工具包 - 其他處理器 For MPC8308 Ethernet USB 32bit RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
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