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XIO2000AI 数据表(PDF) 33 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS |
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XIO2000AI 数据表(HTML) 33 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS |
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33 / 159 page  Introduction 23 April 2007 Revised October 2008 SCPS155C Table 2−12. Miscellaneous Terminals (Continued) SIGNAL GZZ ZZZ BALL ZHC BALL ZHH BALL I/O TYPE CELL TYPE CLAMP RAIL EXTERNAL PARTS DESCRIPTION GPIO5 // SDA T07 N05 N05 I/O LV CMOS VDD_33 Pullup or Pulldown resistor GPIO5 or serial-bus data. This terminal functions as serial-bus data if a pullup resistor is detected on SDA. If a pulldown resistor is detected on SDA, this terminal functions as GPIO5. Note: In serial-bus mode, an external pullup resistor is required to prevent the SDA signal from floating. GPIO6 U07 M06 M05 I/O LV CMOS VDD_33 − General-purpose I/O 6. This terminal functions as a GPIO controlled by bit 6 (GPIO6_DIR) in the GPIO control register (see Section 4.59). Note: This terminal has an internal active pullup resistor. GPIO7 U08 L06 L06 I/O LV CMOS VDD_33 − General-purpose I/O 7. This terminal functions as a GPIO controlled by bit 7 (GPIO7_DIR) in the GPIO control register (see Section 4.59). Note: This terminal has an internal active pullup resistor. GRST N17 L13 L13 I LV CMOS VDD_33_ COMBIO − Global reset input. Asynchronously resets all logic in device, including sticky bits and power management state machines. Note: The GRST input buffer has both hysteresis and an internal active pullup. LOCK U04 P02 P02 I/O PCI Bus VCCP Pullup resistor per PCI spec This terminal functions as PCI LOCK when bit 12 (LOCK_EN) is set in the general control register (see Section 4.65). Note: In lock mode, an external pullup resistor is required to prevent the LOCK signal from floating. M66EN R01 M01 M01 I PCI Bus VCCP Pullup resistor per PCI spec 66-MHz mode enable 0 = Secondary PCI bus and clock outputs operate at 33 MHz 1 = Secondary PCI bus and clock outputs operate at 66 MHz Note: If the PCI bus clock is always 33 MHz, then this terminal is connected to VSS. Note: The XIO2000AI industrial temperature device does not support 66 MHz operation so for the XIO2000AI, this pin must be grounded for proper operation. SERIRQ T04 N03 N03 I/O PCI Bus VCCP Pullup or pulldown resistor Serial IRQ interface. This terminal functions as a serial IRQ interface if a pullup is detected when PERST is deasserted. If a pulldown is detected, then the serial IRQ interface is disabled. |
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