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PC87373 数据表(PDF) 20 Page - National Semiconductor (TI) |
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PC87373 数据表(HTML) 20 Page - National Semiconductor (TI) |
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20 / 174 page  1.0 Signal/Pin Connection and Description (Continued) 20 www.national.com Revision 1.1 1.4.5 Keyboard and Mouse Controller (KBC) 1.4.6 Game Port (GMP) 1.4.7 Musical Instrument Digital Interface (MIDI) Port Signal Pin(s) I/O Buffer Type Power Well Description KBCLK 3 I/O INTS/OD14 VDD3 Keyboard Clock. Keyboard clock signal. External pull-up resistor is required for PS/2 compliance. This pin is monitored during VDD3 power-off for wake-up event detection. KBDAT 4 I/O INTS/OD14 VDD3 Keyboard Data. Keyboard data signal. External pull-up resistor is required for PS/2 compliance. This pin is monitored during VDD3 power-off for wake-up event detection. MCLK 1 I/O INTS/OD14 VDD3 Mouse Clock. Mouse clock signal. External pull-up resistor is required for PS/2 compliance. This pin is monitored during VDD3 power-off for wake-up event detection. MDAT 2 I/O INTS/OD14 VDD3 Mouse Data. Mouse data signal. External pull-up resistor is required for PS/2 compliance. This pin is monitored during VDD3 power-off for wake-up event detection. KBRST 7 I/O INT/OD8, O4/8 VDD3 KBD Reset. Keyboard reset (P20) quasi-bidirectional output. GA20 5 I/O INT/OD8, O4/8 VDD3 Gate A20. KBC gate A20 (P21) quasi-bidirectional output. Signal Pin(s) I/O Buffer Type Power Well Description JYAX 123 I/O INGP/OD12 VDD3 Joystick A X-Axis. Indicates X-axis position of joystick A. JYAY 117 I/O INGP/OD12 VDD3 Joystick A Y-Axis. Indicates Y-axis position of joystick A. JYABT0 113 I INTS VDD3 Joystick A Button 0. Indicates button 0 status of joystick A. JYABT1 114 I INTS VDD3 Joystick A Button 1. Indicates button 1 status of joystick A. JYBX 118 I/O INGP/OD12 VDD3 Joystick B X-Axis. Indicates X-axis position of joystick B. JYBY 120 I/O INGP/OD12 VDD3 Joystick B Y-Axis. Indicates Y-axis position of joystick B. JYBBT0 115 I INTS VDD3 Joystick B Button 0. Indicates button 0 status of joystick B. JYBBT1 116 I INTS VDD3 Joystick B Button 1. Indicates button 1 status of joystick B. Signal Pin(s) I/O Buffer Type Power Well Description MDTX 88 O O4/8 VDD3 MIDI Transmit. MIDI serial data output. MDRX 90 I INTS VDD3 MIDI Receive. MIDI serial data input. |
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