Manual for PIC Basic Pro, the PBP compiler that lets you write firmware for Microchip PIC microcontrollers in a BASIC dialect, filed as a 383 KB PDF. Although indexed as a datasheet, it is a software reference describing commands, syntax, variables and hardware-related statements such as serial, I2C and pin control. It suits technicians who need to read or modify existing PBP source for a device, or build a small test program for a PIC. Compiler versions differ, so check that commands match the version installed.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.