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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TUSB7320 датащи(PDF) 91 Page - Texas Instruments |
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TUSB7320 датащи(HTML) 91 Page - Texas Instruments |
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91 / 115 page  TUSB7320, TUSB7340 www.ti.com SLLSE76J – MARCH 2011 – REVISED MAY 2012 6.5 Host Controller Doorbell Registers The TUSB73X0 supports an array of 65 Doorbell Registers, one for the host controller plus one for each Device Slot supported. The address of the first Doorbell Register is the address programmed into the Base Address Register 0 plus the value programmed into the Doorbell Offset (see Section 6.2.7). Doorbell Base register offset:00h + (04h*Device Slot), where Device Slot = 0 through 64 Register type:Read-Only, Read/Write Default value: 0000 0000h Table 6-52. HC Doorbell Register (Doorbell Base + (04h*Device Slot)), where Device Slot = 0 through 64 Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 No. Reset 0 0 0 0 0 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 0 0 0 0 0 0 0 0 0 0 0 0 State Table 6-53. Interrupter Management Register Description Bit Field Name Access Description 31:16 DB_STREAM_ID rw Doorbell Stream ID. This field returns zeros when read. 15:8 RSVD r Reserved. Returns zeros when read. 7:0 DB_TARGET rw Doorbell Target. This field returns zeros when read. 6.6 xHCI Extended Capabilities Registers These registers are used for the xHCI Extended Capabilities in the TUSB73X0. The offset in Table 6-54 is from the xHCI Extended Capabilities Base, which is the address programmed into the Base Address Register 0 plus the value programmed into the xHCI Extended Capabilities Pointer field in the Host Controller Capability Parameters (see Section 6.2.6). Table 6-54. xHCI Extended Capabilities Register Map Register Name Offset Legacy Support Capability 00h-07h Reserved 08h-0Fh xHCI Supported Protocol Capability (USB 2.0) 10h-1Bh Reserved 1Ch-1Fh xHCI Supported Protocol Capability (USB 3.0) 20h-2Bh 6.6.1 USB Legacy Support Capability Register This register is used to coordinate the ownership of the host controller between BIOS and the operating system. xHCI Extended Capabilities Base register offset:00h Register type:Read-Only, Read/Write Default value: 0000 0201h Copyright © 2011–2012, Texas Instruments Incorporated xHCI MEMORY MAPPED REGISTER SPACE 91 Submit Documentation Feedback Product Folder Link(s): TUSB7320 TUSB7340 |
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