The LavaPort-650 uses a 16650 UART incorporating a 32-byte FIFO (first- in first-out) buffer.

The FIFO control tabs set the buffer“trigger”levels. When the buffer is filled to its trigger level with the selected number of bytes, the CPU will be interrupted and asked to either reload the buffer (for transmission), or retrieve data from the buffer (for reception).

Most efficient data transmission occurs when the CPU is interrupted infrequently. For each interrupt, the CPU can then service the buffer with larger data blocks: during transmission, it can place a large burst of data into the buffer, and during reception it can retrieve a large block from the buffer and then continue multi-tasking.

Ideally therefore, Receive triggers should be set as high as possible and Transmit triggers as low as possible.

However, if the Transmit trigger levels are set too low, or Receive triggers too high, and the CPU is busy when an interrupt is called by the LavaPort, a short period of inactivity may occur between the port and the modem. This will reduce effective transmission/reception speeds.

Optimum buffer settings are dependent on your modem speed, your CPU speed, and the amount of multi-tasking that occurs while online. For a fast modem and fast CPU performing few multi-tasking functions, set transmit triggers low and receive triggers high. If multi-tasking while online, set transmit triggers higher and receive triggers lower.

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Lava Computer 650 installation manual
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650 specifications

The Lava Computer 650 is a notable entry in the landscape of mobile computing, striking a balance between performance, portability, and affordability. It is designed to cater to the needs of everyday users, students, and professionals seeking a reliable device for various tasks such as web browsing, document editing, and multimedia consumption.

One of the standout features of the Lava Computer 650 is its robust design, which combines sleek aesthetics with durable build quality. The lightweight chassis allows for easy portability, making it an excellent choice for users who are constantly on the go. The display is equipped with a vibrant and clear screen that is available in multiple sizes, ensuring that users have options that best suit their preferences and usage scenarios.

Powering the Lava Computer 650 is a range of advanced processors that deliver efficient performance for multitasking and demanding applications. The device supports up to 16GB of RAM, allowing users to run multiple applications simultaneously without significant lag. Furthermore, the storage solutions include SSD options that not only enhance boot-up speeds but also provide ample space for files and applications.

One of the key technologies incorporated into the Lava Computer 650 is its connectivity options. The device features Wi-Fi 6 support, enabling faster internet speeds and improved connectivity in crowded areas. Additionally, it comes equipped with multiple USB ports, HDMI output, and a card reader to facilitate easy connections to peripherals and external displays.

Battery life is another critical aspect of the Lava Computer 650, with the device carefully optimized to ensure users can work without the need for frequent recharges. Depending on usage, the battery can last an entire day, making it suitable for long hours of use in various settings, whether in a classroom, office, or while traveling.

The Lava Computer 650 also prioritizes user experience with its comfortable keyboard and responsive touchpad, allowing for a pleasant typing experience during extended work sessions. The device runs on a user-friendly operating system, providing access to a wide array of applications tailored for productivity, creative tasks, and entertainment.

In summary, the Lava Computer 650 blends performance, portability, and functionality. With its striking design, powerful hardware, long-lasting battery, and modern connectivity features, it stands out as a versatile computing solution for a range of users.
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