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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCI1221 датащи(PDF) 62 Page - Texas Instruments |
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PCI1221 датащи(HTML) 62 Page - Texas Instruments |
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62 / 123 page  PCI1221 GHK/PDV PC CARD CONTROLLERS SCPS042 – JULY 1998 62 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 multifunction routing register Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 Name Multifunction routing Type R R R R R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W 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 Multifunction routing Type R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Default 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Register: Multifunction routing Type: Read/only, read/write (see individual bit descriptions) Offset: 8Ch (functions 0, 1) Default: 0000 0000h Description: The Multifunction routing register is used to configure the MFUNC0:6 terminals. These terminals may be configured for various functions. All multifunction terminals default to the general-purpose input configuration. Pullup resistors are required for terminals configured as outputs. This register is intended to be programmed once at power-on initialization. The default value for this register may also be loaded through a serial bus EEPROM. Table 22. Multifunction Routing Register BIT SIGNAL TYPE FUNCTION 31–28 RSVD R Bits 31–28 are read/only and return 0s when read. 27–24 MFUNC6 R/W Multifunction terminal 6 configuration. These bits control the internal signal mapped to the MFUNC6 terminal as follows: 0000 – RSVD = Reserved input – high impedance (default) 0001 – CLKRUN = PCI clock control signal 0010 – IRQ2 = Parallel ISA type IRQ2 0011 – IRQ3 = Parallel ISA type IRQ3 0100 – IRQ4 = Parallel ISA type IRQ4 0101 – IRQ5 = Parallel ISA type IRQ5 0110 – IRQ6 = Parallel ISA type IRQ6 0111 – IRQ7 = Parallel ISA type IRQ7 1000 – IRQ8 = Parallel ISA type IRQ8 1001 – IRQ9 = Parallel ISA type IRQ9 1010 – IRQ10 = Parallel ISA type IRQ10 1011 – IRQ11 = Parallel ISA type IRQ11 1100 – IRQ12 = Parallel ISA type IRQ12 1101 – IRQ13 = Parallel ISA type IRQ13 1110 – IRQ14 = Parallel ISA type IRQ14 1111 – IRQ15 = Parallel ISA type IRQ15 |
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