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PC87365 데이터시트(PDF) 29 Page - National Semiconductor (TI) |
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PC87365 데이터시트(HTML) 29 Page - National Semiconductor (TI) |
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29 / 215 page ![]() 1.0 Signal/Pin Connection and Description (Continued) 29 www.national.com 1.5 INTERNAL PULL-UP AND PULL-DOWN RESISTORS The signals listed in Table 4 can optionally support internal pull-up (PU) and/or pull-down (PD) resistors. See Section 12.3 for the values of each resistor type. Table 4. Internal Pull-Up and Pull-Down Resistors Signal Pin/s Type Comments ACCESS.bus (ACB) SCL 54 PU28 Programmable SDA 55 PU28 Programmable General-Purpose Input/Output (GPIO) Ports GPIO00-07 2-9 PU28 Programmable GPIO10 GPIO11-14 GPO15 GPIO16-17 21 53-56 57 69, 71 PU28 Programmable GPIO20-27 117-124 PU28 Programmable GPIO30-33 GPIO34 125-128 1 PU28 Programmable Keyboard and Mouse Controller (KBC) P12, P16, P17 6,127,7 PU28 Strap Configuration BADDR 101 PD60 Strap PSLDC0 99 PD60 Strap PSLDC1 107 PD60 Strap PSONPOL 109 PD60 Strap TEST 98 PD60 Strap Parallel Port ACK 79 PU220 AFD_DSTRB 93 PU400 BUSY_WAIT 78 PD120 ERR 91 PU220 INIT 89 PU400 PE 77 PU220/ PD120 Programmable SLCT 76 PD120 SLIN_ASTRB 87 PU400 STB_WRITE 94 PU400 |
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