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PCI1221 датащи(PDF) 84 Page - Texas Instruments |
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PCI1221 датащи(HTML) 84 Page - Texas Instruments |
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84 / 123 page ![]() 84 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 ExCA identification and revision register (index 00h) Bit 7 6 5 4 3 2 1 0 Name ExCA identification and revision Type R R R/W R/W R/W R/W R/W R/W Default 1 0 0 0 0 1 0 0 Register: ExCA identification and revision Type: Read only, read/write (see individual bit descriptions) Offset: CardBus socket address + 800h; Card A ExCA offset 00h Card B ExCA offset 40h Default: 84h Description: This register provides host software with information on 16-bit PC Card support and Intel 82365SL-DF compatibility. See Table 39 for a complete description of the register contents. Table 39. ExCA Identification and Revision Register (Index 00h) BIT SIGNAL TYPE FUNCTION 7-6 IFTYPE R Interface type. These read-only bits, which are hardwired as 10b, identify the 16-bit PC Card support provided by the PCI1221. The PCI1221 supports both I/O and memory 16-bit PC cards. 5-4 RSVD R/W Reserved. Bits 5-4 can be used for Intel 82365SL-DF emulation. 3-0 365REV R/W Intel 82365SL-DF revision. This read/write field stores the Intel 82365SL-DF revision supported by the PCI1221. Host software can read this field to determine compatibility to the Intel 82365SL-DF register set. This field defaults to 0100b upon PCI1221 reset. |
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