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AM3892 Datasheet(PDF) 262 Page - Texas Instruments |
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AM3892 Datasheet(HTML) 262 Page - Texas Instruments |
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262 / 299 page  AM3894 AM3892 SPRS681A – OCTOBER 2010 – REVISED MARCH 2011 www.ti.com Table 8-87 shows the routing specifications for the PCIe data signals. Table 8-87. PCIe Routing Specifications PARAMETER MIN TYP MAX UNIT PCIe signal trace length 10(1) Inches Differential pair trace matching 10(2) Mils Number of stubs allowed on PCIe traces(3) 0 Stubs TX/RX pair differential impedance 80 100 120 Ω TX/RX single ended impedance 51 60 69 Ω Pad size of vias on PCIe trace 25(4) Mils Hole size of vias on PCIe trace 14 Mils Number of vias on each PCIe trace 3 Vias(5) PCIe differential pair to any other trace spacing 2*DS(6) (1) Beyond this, signal integrity may suffer. (2) For example, RXP0 within 10 Mils of RXN0. (3) In-line pads may be used for probing. (4) 35-Mil antipad max recommended. (5) Vias must be used in pairs with their distance minimized. (6) DS = differential spacing of the PCIe traces. 8.14.2 PCIe Peripheral Register Descriptions Table 8-88. PCIe Registers HEX ADDRESS ACRONYM REGISTER NAME 0x5100 0000 PID Peripheral Version and ID 0x5100 0004 CMD_STATUS Command Status 0x5100 0008 CFG_SETUP Config Transaction Setup 0x5100 000C IOBASE IO TLP Base 0x5100 0010 TLPCFG TLP Attribute Configuration 0x5100 0014 RSTCMD Reset Command and Status 0x5100 0020 PMCMD Power Management Command 0x5100 0024 PMCFG Power Management Configuration 0x5100 0028 ACT_STATUS Activity Status 0x5100 0030 OB_SIZE Outbound Size 0x5100 0034 DIAG_CTRL Diagnostic Control 0x5100 0038 ENDIAN Endian Mode 0x5100 003C PRIORITY CBA Transaction Priority 0x5100 0050 IRQ_EOI End of Interrupt 0x5100 0054 MSI_IRQ MSI Interrupt IRQ 0x5100 0064 EP_IRQ_SET Endpoint Interrupt Request Set 0x5100 0068 EP_IRQ_CLR Endpoint Interrupt Request Clear 0x5100 006C EP_IRQ_STATUS Endpoint Interrupt Status 0x5100 0070 GPRO General Purpose 0 0x5100 0074 GPR1 General Purpose 1 0x5100 0078 GPR2 General Purpose 2 0x5100 007C GPR3 General Purpose 3 0x5100 0100 MSI0_IRQ_STATUS_RAW MSI 0 Interrupt Raw Status 0x5100 0104 MSI0_IRQ_STATUS MSI 0 Interrupt Enabled Status 0x5100 0108 MSI0_IRQ_ENABLE_SET MSI 0 Interrupt Enable Set 0x5100 010C MSI0_IRQ_ENABLE_CLR MSI 0 Interrupt Enable Clear 0x5100 0180 IRQ_STATUS_RAW Raw Interrupt Status 262 Peripheral Information and Timings Copyright © 2010–2011, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): AM3894 AM3892 |
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