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ESP32-P4 Datasheet(PDF) 14 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD. |
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ESP32-P4 Datasheet(HTML) 14 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD. |
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14 / 93 page  2 Pins 2.2 Pin Overview The ESP32-P4 chip integrates multiple peripherals that require communication with the outside world. To keep the chip package size reasonably small, the number of available pins has to be limited. So the only way to route all the incoming and outgoing signals is through pin multiplexing. Pin muxing is controlled via software programmable registers (see ESP32-P4 Technical Reference Manual > Chapter GPIO Matrix and IO MUX). In addition, ESP32-P4 has a number of pins that are dedicated to certain peripherals, such as MIPI DSI and CSI, and cannot be used for general-purpose IO. All in all, the ESP32-P4 chip has the following types of pins: • IO pins with the following predefined sets of functions to choose from: – Each IO pin has predefined IO MUX functions – see Table 2-3 IO MUX Functions – Some IO pins have predefined LP IO MUX functions – see Table 2-5 LP IO MUX Functions – Some IO pins have predefined analog functions – see Table 2-7 Analog Functions Predefined functions means that each IO pin has a set of direct connections to certain signals from on-chip components. During run-time, the user can configure which component signal from a predefined set to connect to a certain pin at a certain time via memory mapped registers. • Dedicated interface pins can only be used by certain peripherals, such as flash, MIPI DSI, and MIPI CSI – see Table 2-9 Dedicated Interface Pins • Analog pins that have exclusively-dedicated analog functions – see Table 2-10 Analog Pins • Power pins that supply power to the chip components and non-power pins – see Table 2-11 Power Pins Table 2-1 Pin Overview gives an overview of all the pins. For more information, see the respective sections for each pin type below, or Appendix A – ESP32-P4 Consolidated Pin Overview. Table 2-1. Pin Overview Pin Pin Pin Pin Providing Pin Settings 4 Pin Function Sets 1 No. Name Type Power 2, 3 At Reset After Reset IO MUX LP IO MUX Analog 1 GPIO1 IO VDD_LP / VDD_BAT – – IO MUX LP IO MUX Analog 2 GPIO2 IO VDD_LP / VDD_BAT – IE, WPU 5 IO MUX LP IO MUX Analog 3 GPIO3 IO VDD_LP / VDD_BAT – IE IO MUX LP IO MUX Analog 4 GPIO4 IO VDD_LP – IE IO MUX LP IO MUX Analog 5 GPIO5 IO VDD_LP – – IO MUX LP IO MUX Analog 6 GPIO6 IO VDD_LP – – IO MUX LP IO MUX Analog 7 GPIO7 IO VDD_LP – – IO MUX LP IO MUX Analog 8 GPIO8 IO VDD_LP – – IO MUX LP IO MUX Analog 9 VDD_LP Power – – – – – – 10 GPIO9 IO VDD_LP – – IO MUX LP IO MUX Analog 11 GPIO10 IO VDD_LP – – IO MUX LP IO MUX Analog 12 GPIO11 IO VDD_LP – – IO MUX LP IO MUX Analog 13 GPIO12 IO VDD_LP – – IO MUX LP IO MUX Analog 14 GPIO13 IO VDD_LP – – IO MUX LP IO MUX Analog 15 GPIO14 IO VDD_LP – – IO MUX LP IO MUX Analog Cont’d on next page Espressif Systems 14 Submit Documentation Feedback ESP32-P4 Series Datasheet v0.5 |
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