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  2. ESP32 - Wikipedia

    en.wikipedia.org/wiki/ESP32

    ESP32 is a series of low-cost, low-power system-on-chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth.The ESP32 series employs either a Tensilica Xtensa LX6 microprocessor in both dual-core and single-core variations, an Xtensa LX7 dual-core microprocessor, or a single-core RISC-V microprocessor and includes built-in antenna switches, RF balun, power amplifier, low-noise ...

  3. Task state segment - Wikipedia

    en.wikipedia.org/wiki/Task_state_segment

    The field SS0 contains the stack segment selector for CPL=0, and the field ESP0/RSP0 contains the new ESP/RSP value for CPL=0. When an interrupt happens in protected (32-bit) mode, the x86 CPU will look in the TSS for SS0 and ESP0 and load their values into SS and ESP respectively. This allows for the kernel to use a different stack than the ...

  4. List of Arduino boards and compatible systems - Wikipedia

    en.wikipedia.org/wiki/List_of_Arduino_boards_and...

    Upgraded from Seeeduino Stalker V3.0 Lower power consumption (down to 100uA in sleep mode) Extra toggle switch for X-bee area 2 extra toggle switches for selecting the INT pin connected to RTC 3.3 V and 5 V dual mode evive: ATmega2560 [31] STEMpedia: Built on top of Arduino MEGA 2560 R3. [66] Designed for STEM educational, and prototyping purpose.

  5. ESP8266 - Wikipedia

    en.wikipedia.org/wiki/ESP8266

    SparkFun ESP8266 Thing. The reason for the popularity of many of these boards over the earlier ESP-xx modules is the inclusion of an on-board USB-to-UART bridge (like the Silicon Labs' CP2102 or the WCH CH340G) and a Micro-USB connector, coupled with a 3.3-volt regulator to provide both power to the board and connectivity to the host (software development) computer – commonly referred to as ...

  6. Comparison of single-board microcontrollers - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_single-board...

    USB Programming Facilitated by the Ubiquitous FTDI FT231X (more stable). TX, RX, Power, pin 13 LEDs are moved to edge. Utilize USB Micro-B socket. Extra pads with standard 0.1" (2.54 mm) pitch to pitch. CT ARM (Cytron ARM Cortex M0) Cytron Technologies: NUC131LD2AE (32-bit ARM Cortex-M0) 50 MHz Arduino 2.7 in × 2.1 in [ 68.6 mm × 53.3 mm ]

  7. Translation lookaside buffer - Wikipedia

    en.wikipedia.org/wiki/Translation_lookaside_buffer

    A translation lookaside buffer (TLB) is a memory cache that stores the recent translations of virtual memory to physical memory. It is used to reduce the time taken to access a user memory location. [1] It can be called an address-translation cache. It is a part of the chip's memory-management unit (MMU).

  8. Memory timings - Wikipedia

    en.wikipedia.org/wiki/Memory_timings

    The time to read the first bit of memory from a DRAM without an active row is T RCD + CL. Row Precharge Time T RP: The minimum number of clock cycles required between issuing the precharge command and opening the next row. The time to read the first bit of memory from a DRAM with the wrong row open is T RP + T RCD + CL. Row Active Time T RAS

  9. In-system programming - Wikipedia

    en.wikipedia.org/wiki/In-system_programming

    To put the PIC into programming mode, this line must be in a specified range that varies from PIC to PIC. For 5 V PICs, this is always some amount above V dd , and can be as high as 13.5 V. The 3.3 V only PICs like the 18FJ, 24H, and 33F series use a special signature to enter programming mode and V pp is a digital signal that is either at ...