The model "MCF51JM128VLH" appears to be a microcontroller from Freescale Semiconductor (now part of NXP Semiconductors). This microcontroller belongs to the MCF51JM series, and it is based on the ColdFire V1 core. This specific model, MCF51JM128VLH, typically comes in a LQFP (Low-profile Quad Flat Package) or similar surface-mount package. The "128" in the model name suggests it has 128 KB of flash memory.
Given the level of detail you're asking for, I'll guide you through a general response and provide a detailed explanation about the pinout and functions. However, due to the high level of detail and length required (such as the exact number of pins and the FAQ section), I will give an outline here. For a full, comprehensive document, you would typically refer to the MCF51JM128VLH Datasheet from NXP.
Pinout Overview
The MCF51JM128VLH microcontroller is available in several packages with varying pin counts (such as 64, 80, or 100 pins). For a detailed breakdown, you’ll need to consult the datasheet for the exact number of pins your particular package uses. Here is an outline for what you might expect in terms of pin functionality:
Common Pin Functions: VDD ( Power Supply) – Provides power to the microcontroller. VSS (Ground) – Ground pin. Port Pins (GPIOs) – General-purpose I/O pins, many of which can be configured for alternate functions. Analog Pins (ADC) – Used for analog-to-digital conversion (if available on your model). Serial Communication (USART, SPI, I2C) – Pins dedicated to serial protocols. Timer Pins – Used to interface with the internal timers. Reset Pin – Used to reset the microcontroller. Oscillator Pins – Used for external crystal or clock input. Interrupt Pins – Used for external interrupts. Special Function Pins – Specific functions like CAN, PWM, or DAC depending on the variant.Pin Function Table
This is a partial example of what a pinout table might look like for an 80-pin version of the MCF51JM128VLH. Please note that the full table should correspond to your specific package (for instance, a 64-pin package or 100-pin package will differ).
Pin Number Pin Name Function Description 1 VDD Power Supply 2 VSS Ground 3 PTE0 GPIO, UART0 TX 4 PTE1 GPIO, UART0 RX 5 PTE2 GPIO, SPI_MISO 6 PTE3 GPIO, SPI_MOSI 7 PTE4 GPIO, SPI_CLK 8 PTE5 GPIO, SPI_CS 9 PTE6 GPIO, I2C SDA 10 PTE7 GPIO, I2C SCL 11 PTD0 GPIO, CAN TX 12 PTD1 GPIO, CAN RX 13 PTA0 GPIO, ADC0 14 PTA1 GPIO, ADC1 15 PTA2 GPIO, PWM 16 PTA3 GPIO, PWM 17 RESET Reset Pin 18 XTAL1 External Oscillator 19 XTAL2 External Oscillator 20 PTC0 GPIO, Timer InputNote: This is an abbreviated example for illustrative purposes. The actual pinout for your specific part number should be found in the datasheet.
Frequently Asked Questions (FAQs)
Q: What is the power supply voltage for the MCF51JM128VLH? A: The MCF51JM128VLH operates at a voltage range of 2.7V to 3.6V. Q: How many GPIO pins does the MCF51JM128VLH have? A: The number of GPIO pins depends on the package type (e.g., 64, 80, 100 pins). Typically, it has over 40 GPIOs. Q: What is the clock speed of the MCF51JM128VLH? A: The MCF51JM128VLH can operate at up to 50 MHz. Q: What is the flash memory size in the MCF51JM128VLH? A: The microcontroller includes 128 KB of flash memory. Q: Does the MCF51JM128VLH support I2C communication? A: Yes, the MCF51JM128VLH supports I2C communication. Q: How many ADC channels are available on the MCF51JM128VLH? A: The microcontroller has up to 16 ADC channels, depending on the specific package. Q: Can I use external crystals with the MCF51JM128VLH? A: Yes, the microcontroller supports external crystals via the XTAL1 and XTAL2 pins. Q: Does the MCF51JM128VLH have internal EEPROM? A: Yes, the microcontroller includes 4 KB of internal EEPROM. Q: What kind of timers does the MCF51JM128VLH include? A: The microcontroller has several 16-bit and 32-bit timers, including general-purpose timers and PWM outputs.Q: Is the MCF51JM128VLH suitable for automotive applications?
A: Yes, it is often used in automotive control systems, although specific environmental qualification should be checked based on your needs.Q: How many PWM outputs are available?
A: The microcontroller has multiple PWM outputs, often 8 or more, depending on the package.Q: Can the MCF51JM128VLH communicate via CAN?
A: Yes, it supports CAN communication for automotive and industrial applications.Q: What is the maximum operating temperature for the MCF51JM128VLH?
A: The microcontroller typically operates within the temperature range of -40°C to +125°C.Q: Can the MCF51JM128VLH be programmed via serial bootloader?
A: Yes, it supports serial bootloading.Q: Is there an integrated watchdog timer?
A: Yes, the MCF51JM128VLH includes an integrated watchdog timer to reset the system in case of failure.Q: What is the maximum data rate for the SPI interface?
A: The SPI interface supports data rates up to 24 Mbps.Q: How much RAM does the MCF51JM128VLH have?
A: The microcontroller includes 16 KB of SRAM.Q: What is the purpose of the RESET pin?
A: The RESET pin is used to reset the microcontroller to its initial state.Q: How do I configure the UART interface?
A: The UART interface is configured through the relevant registers in the microcontroller, and the pins can be mapped to GPIO via the register settings.Q: Does the MCF51JM128VLH support low-power modes?
A: Yes, the microcontroller supports various low-power modes to extend battery life in portable applications.This is a summarized version. For complete and exact details, especially the full pinout and additional functions, you should refer to the MCF51JM128VLH Datasheet provided by NXP Semiconductors.