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PCI7510 Datasheet(PDF) 147 Page - Texas Instruments |
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PCI7510 Datasheet(HTML) 147 Page - Texas Instruments |
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147 / 234 page  7–6 7.7 Header Type and BIST Register The header type and built-in self-test (BIST) register indicates the PCI7510 PCI header type and no built-in self-test. See Table 7–6 for a complete description of the register contents. Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Name Header type and BIST Type R R R R R R R R R R R R R R R R Default 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Register: Header type and BIST Offset: 0Eh Type: Read-only Default: 0000h Table 7–6. Header Type and BIST Register Description BIT FIELD NAME TYPE DESCRIPTION 15–8 BIST R Built-in self-test. The PCI7510 device does not include a BIST; therefore, this field returns 00h when read. 7–0 HEADER_TYPE R PCI header type. The PCI7510 device includes the standard PCI header, which is communicated by returning 00h when this field is read. 7.8 OHCI Base Address Register The OHCI base address register is programmed with a base address referencing the memory-mapped OHCI control. When BIOS writes all 1s to this register, the value read back is FFFF F800h, indicating that at least 2K bytes of memory address space are required for the OHCI registers. See Table 7–7 for a complete description of the register contents. Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 Name OHCI base address Type RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW Default 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Name OHCI base address Type RW RW RW RW RW R R R R R R R R R R R Default 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Register: OHCI base address Offset: 10h Type: Read/Write, Read-only Default: 0000 0000h Table 7–7. OHCI Base Address Register Description BIT FIELD NAME TYPE DESCRIPTION 31–11 OHCIREG_PTR RW OHCI register pointer. This field specifies the upper 21 bits of the 32-bit OHCI base address register. 10–4 OHCI_SZ R OHCI register size. This field returns 0s when read, indicating that the OHCI registers require a 2K-byte region of memory. 3 OHCI_PF R OHCI register prefetch. Bit 3 returns 0 when read, indicating that the OHCI registers are nonprefetchable. 2–1 OHCI_MEMTYPE R OHCI memory type. This field returns 0s when read, indicating that the OHCI base address register is 32 bits wide and mapping can be done anywhere in the 32-bit memory space. 0 OHCI_MEM R OHCI memory indicator. Bit 0 returns 0 when read, indicating that the OHCI registers are mapped into system memory space. |
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