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DLPC3478 Datasheet(PDF) 10 Page - Texas Instruments |
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DLPC3478 Datasheet(HTML) 10 Page - Texas Instruments |
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10 / 68 page  10 DLPC3478 DLPS111 – MARCH 2018 www.ti.com Product Folder Links: DLPC3478 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated (1) GPIO signals must be configured through software for input, output, bidirectional, or open-drain. Some GPIO have one or more alternative use modes, which are also software configurable. The reset default for all GPIO is as an input signal. An external pullup is required for each signal configured as open-drain. (2) general purpose I/O. These GPIO are software configurable. Pin Functions – GPIO Peripheral Interface(1) PIN I/O DESCRIPTION(2) NAME NUMBER GPIO_19 M15 B1 General purpose I/O 19 (hysteresis buffer). Options: 1. Optional GPIO. Configure as a logic zero GPIO output and leave unconnected if not used (otherwise this pin requires an external pullup or pulldown component to avoid a floating GPIO input). 2. MTR_SENSE, Motor Sense (Input): For Focus Motor control applications, this GPIO must be configured as an input to the fed from the focus motor position sensor. 3. KEYPAD_4 (input): keypad applications GPIO_18 M14 B1 General purpose I/O 18 (hysteresis buffer). Options: 1. Optional GPIO. Configure as a logic zero GPIO output and leave unconnected if not used (otherwise this pin requires an external pullup or pulldown component to avoid a floating GPIO input) 2. KEYPAD_3 (input): keypad applications GPIO_17 L15 B1 General purpose I/O 17 (hysteresis buffer). Options: 1. Optional GPIO. Configure as a logic zero GPIO output and leave unconnected if not used (otherwise this pin requires an external pullup or pulldown component to avoid a floating GPIO input). 2. KEYPAD_2 (input): keypad applications GPIO_16 L14 B1 General purpose I/O 16 (hysteresis buffer). Options: 1. Optional GPIO. Configure as a logic zero GPIO output and leave unconnected if not used (otherwise this pin requires an external pullup or pulldown component to avoid a floating GPIO input). 2. KEYPAD_1 (input): keypad applications GPIO_15 K15 B1 General purpose I/O 15 (hysteresis buffer). Options: 1. Optional GPIO. Configure as a logic zero GPIO output and leave unconnected if not used (otherwise this pin requires an external pullup or pulldown component to avoid a floating GPIO input). 2. KEYPAD_0 (input): keypad applications GPIO_14 K14 B1 General purpose I/O 14 (hysteresis buffer). Options: 1. Optional GPIO. Configure as a logic zero GPIO output and leave unconnected if not used (otherwise this pin requires an external pullup or pulldown component to avoid a floating GPIO input). GPIO_13 J15 B1 General purpose I/O 13 (hysteresis buffer). Options: 1. CAL_PWR (output): Intended to feed the calibration control of the successive approximation ADC light sensor. 2. Optional GPIO. Configure as a logic zero GPIO output and leave unconnected if not used (otherwise this pin requires an external pullup or pulldown component to avoid a floating GPIO input). GPIO_12 J14 B1 General purpose I/O 12 (hysteresis buffer). Options: 1. (Output) power enable control for LABB light sensor. 2. Optional GPIO. Configure as a logic zero GPIO output and leave unconnected if not used (otherwise this pin requires an external pullup or pulldown component to avoid a floating GPIO input). GPIO_11 H15 B1 General purpose I/O 11 (hysteresis buffer). Options: 1. (Output): thermistor power enable. 2. Optional GPIO. Configure as a logic zero GPIO output and leave unconnected if not used (otherwise this pin requires an external pullup or pulldown component to avoid a floating GPIO input). GPIO_10 H14 B1 General Purpose I/O 10 (hysteresis buffer). Options: 1. RC_CHARGE (output): Intended to feed the RC charge circuit of the successive approximation ADC used to control the light sensor comparator. 2. Optional GPIO. Configure as a logic zero GPIO output and leave unconnected if not used (otherwise this pin requires an external pullup or pulldown component to avoid a floating GPIO input). GPIO_09 G15 B1 General purpose I/O 09 (hysteresis buffer). Options: 1. LS_PWR (active high output): Intended to feed the power control signal of the successive approximation ADC light sensor. 2. Optional GPIO. Configure as a logic zero GPIO output and leave unconnected if not used (otherwise this pin requires an external pullup or pulldown component to avoid a floating GPIO input). |
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