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TUSB7340 Datasheet(PDF) 38 Page - Texas Instruments |
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TUSB7340 Datasheet(HTML) 38 Page - Texas Instruments |
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38 / 117 page ![]() TUSB7320, TUSB7340 SLLSE76M – MARCH 2011 – REVISED JULY 2015 www.ti.com 7.5.1.37 Next Item Pointer Register The contents of this read-only register indicate the next item in the linked list of capabilities for the TUSB73X0. This register reads C0h pointing to the MSI-X Capability registers. PCI register offset: 71h Register type: Read-only Default value: C0h Table 54. PCI Register 71h Bit No. 7 6 5 4 3 2 1 0 Reset State 1 1 0 0 0 0 0 0 7.5.1.38 PCI Express Capabilities Register This register indicates the capabilities of the TUSB73X0 related to PCI Express. PCI register offset: 72h Register type: Read-only Default value: 0002h Table 55. PCI Register 72h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 No. Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 State Table 56. PCI Express Capabilities Register Description BIT FIELD NAME ACCESS DESCRIPTION 15:14 RSVD r Reserved. Returns zeros when read. 13:9 INT_NUM r Interrupt Message Number. This field is used for MSI and MSI-X support. Slot Implemented. This bit is not valid for the TUSB73X0 and is read only 8 SLOT r zero. Device/Port Type. This read only field returns 0000b indicating that the 7:4 DEV_TYPE r device is a PCI Express Endpoint. Capability Version. This field returns 0010b indicating revision two of the 3:0 VERSION r PCI Express capability. 38 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TUSB7320 TUSB7340 |
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