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TUSB7340 数据表(PDF) 86 Page - Texas Instruments |
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TUSB7340 数据表(HTML) 86 Page - Texas Instruments |
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86 / 122 page ![]() Default value: 0800 0840h Table 8-131. HC Capability Register 04h Bit No. 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 Reset State 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 Bit No. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Reset State 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 Table 8-132. HC Structural Parameters 1 Description BIT FIELD NAME ACCESS DESCRIPTION 31:24 MAX_PORTS r 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 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. 18:8 MAX_INTRS r Number of Interrupters. This field specifies the number of Interrupters that are implemented. The TUSB73x0 implements 8 Interrupters. Each Interrupter is allocated to a vector of MSI-X. 7:0 MAX_SLOTS r Number of Device Slots. This field specifies the maximum number of Device Context Structures and Doorbell Array entries that are supported. The TUSB73x0 supports 64 Device Slots. TUSB7320, TUSB7340 SLLSE76Q – MARCH 2011 – REVISED MARCH 2024 www.ti.com 86 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated Product Folder Links: TUSB7320 TUSB7340 |
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