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XIO2001IPNP 数据表(PDF) 48 Page - Texas Instruments |
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XIO2001IPNP 数据表(HTML) 48 Page - Texas Instruments |
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48 / 145 page ![]() 8.4.8 Primary Latency Timer Register This read-only register has no meaningful context for a PCI Express device and returns 00h when read. PCI register offset: 0Dh Register type: Read only Default value: 00h BIT NUMBER 7 6 5 4 3 2 1 0 RESET STATE 0 0 0 0 0 0 0 0 8.4.9 Header Type Register This read-only register indicates that this function has a type one PCI header. Bit 7 of this register is 0b indicating that the bridge is a single-function device. PCI register offset: 0Eh Register type: Read only Default value: 01h BIT NUMBER 7 6 5 4 3 2 1 0 RESET STATE 0 0 0 0 0 0 0 1 8.4.10 BIST Register Since the bridge does not support a built-in self test (BIST), this read-only register returns the value of 00h when read. PCI register offset: 0Fh Register type: Read only Default value: 00h BIT NUMBER 7 6 5 4 3 2 1 0 RESET STATE 0 0 0 0 0 0 0 0 8.4.11 Device Control Base Address Register This register programs the memory base address that accesses the device control registers. By default, this register is read only. If bit 5 of the Control and Diagnostic Register 2 (see Section 8.4.64) is set, then the bits 31:12 of this register become read/write. See Table 8-15 for a complete description of the register contents. PCI register offset: 10h Register type: Read-only, Read/Write Default value: 0000 0000h BIT NUMBER 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 RESET STATE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 BIT NUMBER 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 RESET STATE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 XIO2001 SCPS212J – MAY 2009 – REVISED JANUARY 2021 www.ti.com 48 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: XIO2001 |
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