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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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TWR-LS1021A Fiches technique(PDF) 26 Page - Freescale Semiconductor, Inc |
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TWR-LS1021A Fiches technique(HTML) 26 Page - Freescale Semiconductor, Inc |
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26 / 71 page  Architecture TWR-LS1021A Reference Manual, Rev. 0 Freescale Semiconductor 2-11 Software must map the cfg_srds1_prtcl field in the RCW to the bits shown in Table 2-6 to the selected Serdes configuration. To assist software in this, the CPLD will map either the RCW[cfg_srds1_prtcl] field to these bits (if accessible), or map a DIP switch using the same process, see Section 2.8.4 for details. 2.8.1 PCI Express support TWR-LS1021A supports evaluation of two PCI Express slots using mini PCI Express Gen-1 or Gen-2 card. In a few specialized cases (0x10 protocol), two PCI Express controllers are routed to one PCI Express slot. This mode is designed for use with a specialized breakout card, and should never be enabled with normal PCI Express cards installed. For support this specific x2 mini PCI Express, one of connectors has some additional signals. The expansion connector is used to support costumed x2 mini PCIE card. The pinout of the side-band connector is shown in Table 2-7. Table 2-7. Specific mini PCIe pinout Signal Pin Pin Signal GND 51 52 +3.3Vaux RERp1 49 50 GND RERn1 47 48 +1.5V GND 45 46 GND GND 43 44 RETp1 +3.3Vaux 41 42 RETn1 +3.3Vaux 39 40 GND GND 37 38 USB_D+ GND 35 36 USB_D- PETp0 33 34 GND PETn0 31 32 SMB_DATA GND 29 30 SMB_CLK GND 27 28 +1.5V PERp0 25 26 GND PERn0 23 24 +3.3Vaux GND 21 22 PERST# Reserved (UIM_C4) 19 20 W_DISABLE Reserved (UIM_C48 17 18 GND Mechanical Key GND 15 16 UIM_VPP REFCLK+ 13 14 UIM_RESET REFCLK- 11 12 UIM_CLK |
Numéro de pièce similaire - TWR-LS1021A |
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Description similaire - TWR-LS1021A |
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