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PC8374L Datasheet(PDF) 25 Page - National Semiconductor (TI) |
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PC8374L Datasheet(HTML) 25 Page - National Semiconductor (TI) |
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25 / 239 page  1.0 Signal/Pin Connection and Description (Continued) Revision 1.1 25 www.national.com 1.4.8 Health Management (HM) 1.4.9 System Wake-Up Control (SWC) Signal Pin(s) I/O Buffer Type Power Well Description SWD 103 I/O INSM/OD6 VSB3 SensorPath Data. Bidirectional, SensorPath Data interface signal to LMxx sensor device(s). An internal pull-up for this pin is optional. HMSCL 88 I/O INSM/OD6 VSB3 Health Management SMBus Serial Clock. Serial clock signal. External pull-up resistor is required. HMSDA 90 I/O INSM/OD6 VSB3 Health Management SMBus Serial Data. Serial data signal. External pull-up resistor is required. FANTACH1-4 111-112, 104-105 IINTS VDD3 Fan Inputs. Used to feed the fan’s tachometer pulse to the Fan Speed Monitor. FANPWM1-3 106, 108-109 OOD12,O6/12 VDD3 Fan Outputs. Pulse Width Modulation (PWM) signals, used to control the speed of cooling fans by controlling the voltage supplied to the fan motors. Signal Pin(s) I/O Buffer Type Power Well Description GPIOE00-07 103-106, 108-109, 111-112 I INTS VSB3 Wake-Up Inputs. Generates a wake-up event. These pins have programmable debouncing. When the pin is not used, the internal pull-up resistor must be enabled to allow the pin to be left not connected. 118-121, 124, 126-128 VDD3 GPIOE10-13 116, 114, 115, 113 INTS2 VSB3 GPIOE12-13 74-75 INTS GPIOE14, GPIOE16-17 101, 100, 80 RI1 RI2 32, 118 or 119 IINTS VSB3 Ring Indicator Wake-Up. When low, generates a wake-up event, indicating that a telephone ring signal was received by the modem. KBCLK 3 I INTS VSB3 Keyboard Clock Wake-Up. Generates a wake-up event when a specific keyboard sequence is detected. KBDAT 4 I INTS VSB3 Keyboard Data Wake-Up. Generates a wake-up event when a specific keyboard sequence is detected. MCLK 1 I INTS VSB3 Mouse Clock Wake-Up. Generates a wake-up event when a specific mouse action is detected. MDAT 2 I INTS VSB3 Mouse Data Wake-Up. Generates a wake-up event when a specific mouse action is detected. SIOPME 99 O OD8,O4/8 VSB3 Power Management Event (SCI). Active level indicates that a wake-up event occurred, causing the system to exit its current sleep state. This signal has programmable polarity (default is active low). SLP_S3, SLP_S5 85, 86 IINTS4 VSB3 Sleep States 3 to 5. Active (low) level indicates the system is in one of the sleep states S3 or S5. These signals are generated by an external ACPI controller. YLW_LED, GRN_LED 95, 94 OOD24 VSB3 Power LEDs. Yellow and green LED drivers. Each indicates the Main power status or blinks under software control. Winbond Electronics Corp. Advanced PC Product Center |
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