0x3FF

0x3FF is a hexadecimal numeric literal representing the decimal value 1023. In binary it is 1111111111, a 10-bit sequence of ones. As 2^10−1, it is the maximum unsigned value representable with 10 bits.

Common uses: In digital electronics, 0x3FF often denotes the maximum value of a 10-bit field, such as a sensor reading from a 10-bit analog-to-digital converter or a color channel in 10-bit-per-channel color representations (where each channel ranges from 0 to 1023).

As a bitmask: 0x3FF can be used to extract the least significant 10 bits by applying a bitwise AND, e.g., value & 0x3FF.

In programming, 0x3FF is written with the 0x prefix used by languages like C, C++, Java, and Python. It is a concise way to express the value 1023 and to use it as a constant in masks, thresholds, or initializations.