參數(shù)資料
型號: MPC8568ECVTAUJJA
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 1333 MHz, RISC PROCESSOR, PBGA1023
封裝: 33 X 33 MM, 2.75 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, FCBGA-1023
文件頁數(shù): 42/139頁
文件大?。?/td> 1449K
代理商: MPC8568ECVTAUJJA
MPC8568E/MPC8567E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 1
136
Freescale Semiconductor
Ordering Information
SD_TX[7:0]
25.9.2
Unused input
25.9.2.1
SerDes block power not supplied
If the high speed interface is not used at all, then SCOREVDD/XVDD/AVDD_SRDS can be tied to GND,
all receiver inputs should be tied to the GND as well. This includes:
SD_RX[7:0]
SD_REF_CLK
SD_REF_CLK
SD_RX_CLK
SD_RX_FRM_CTL
25.9.2.2
SerDes Interface Partly used
If the high-speed SerDes interface is partly unused, any of the unused receiver pins should be terminated
as follows:
SD_RX[7:0] = tied to SCOREGND
SD_REF_CLK = tied to SCOREGND
NOTE
Power down the unused lane through SERDESCR1[0:7] register
(offset = 0xE_0F08) (This prevents the oscillations and holds the receiver
output in a fixed state.) that maps to SERDES lane 0 to lane 7 accordingly.
During HRESET/POR, the high-speed interface must be in Serial RapidIO mode and/or PCI Express mode
according to the state of the PE[8:10]. Software must disable this mode through DEVDISR[SRIO] or
DEVDISR[PCIE] accordingly during software initialization.
26 Ordering Information
Contact your local Freescale sales office or regional marketing team for order information.
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