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TUSB7320 датащи(PDF) 75 Page - Texas Instruments |
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TUSB7320 датащи(HTML) 75 Page - Texas Instruments |
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75 / 115 page ![]() TUSB7320, TUSB7340 www.ti.com SLLSE76J – MARCH 2011 – REVISED MAY 2012 6.2.2 Host Controller Interface Version Number This read only register indicates the xHCI specification revision number supported by the TUSB73X0. BAR0 register offset: 02h Register type:Read-Only Default value: 0096h Table 6-4. HC Capability Register 02h 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 1 0 0 1 0 1 1 0 State 6.2.3 Host Controller Structural Parameters 1 This read only register defines basic structural parameters supported by the TUSB73X0. BAR0 register offset: 04h Register type:Read-Only Default value: 0800 0840h Table 6-5. HC Capability Register 04h Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 No. Reset 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 State Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 No. Reset 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 State Table 6-6. HC Structural Parameters 1 Description Bit Field Name Access Description Number of Ports. For the TUSB7340, this field is 08h to indicate that 8 ports are supported. For the TUSB7320, this field is 04h to indicate that 4 31:24 MAX_PORTS r ports are supported. This field also indicates the number of sets of port registers that are addressable in the Operational Register Space. 23:19 RSVD r Reserved. Returns zeros when read. Number of Interrupters. This field specifies the number of Interrupters 18:8 MAX_INTRS r that are implemented. The TUSB73x0 implements 8 Interrupters. Each Interrupter is allocated to a vector of MSI-X. Number of Device Slots. This field specifies the maximum number of 7:0 MAX_SLOTS r Device Context Structures and Doorbell Array entries that are supported. The TUSB73x0 supports 64 Device Slots. Copyright © 2011–2012, Texas Instruments Incorporated xHCI MEMORY MAPPED REGISTER SPACE 75 Submit Documentation Feedback Product Folder Link(s): TUSB7320 TUSB7340 |
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